{"title":"D-D The Aquarium Solution","description":"\u003cp\u003e\u003cstrong\u003eD-D The Aquarium Solution reef accessories include Aquascape Construction Epoxy, coral colour lenses, reef-viewing sunglasses and the H2Ocean True Seawater Refractometer.\u003c\/strong\u003e The collection combines aquascaping, coral viewing and salinity measurement.\u003c\/p\u003e\u003cp\u003eAquascape Epoxy secures rockwork and coral positioning, orange viewing filters reveal colours beneath blue aquarium lighting, and H2Ocean measures salinity using a seawater-calibrated scale. Each range addresses a specific part of building and maintaining a reef aquarium.\u003c\/p\u003e","products":[{"product_id":"d-d-gen-2-coral-colour-lens","title":"D-D Gen 2 Coral Colour Lens","description":"\u003ch2\u003eD-D Gen 2 Coral Colour Lens\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eThe D-D Gen 2 Coral Colour Lens\u003c\/strong\u003e is a clip-on smartphone and tablet lens that filters out overpowering blue light, so you can photograph and show off the full colour spectrum of your saltwater aquarium. It is made for reef keepers, marine hobbyists and aquarium photographers who want truer-to-life coral photos without changing their lighting or camera settings.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy Blue Light Makes Reef Photos Difficult\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePhotographing the vibrant life in a saltwater tank is a challenge because modern aquarium lighting casts a dominant blue light. Getting true-to-life colours normally means tinkering with your lighting spectrum or adjusting your camera settings. This lens takes a simpler route: it clips onto your device and filters out the dominant blue light, so your tank can be captured and shared without touching your lights or your camera.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eKey Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFilters out overpowering blue light to capture the full colour spectrum of a saltwater aquarium\u003c\/li\u003e\n\u003cli\u003eNo need to alter your aquarium lighting or camera settings\u003c\/li\u003e\n\u003cli\u003eRevamped Gen 2 design with an integrated CPL (Circular Polarizing Lens) filter built into a single lens\u003c\/li\u003e\n\u003cli\u003eEnhanced colour rendering across 15K and 20K spectrums\u003c\/li\u003e\n\u003cli\u003eProduces images closer to the visual experience of watching the aquarium in person, and outperforms its predecessor\u003c\/li\u003e\n\u003cli\u003eEasy-to-use clip-on design that delivers high-quality results for hobbyists and photographers alike\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eHow to Use\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAttach the lens to your device using the universal lens clip\u003c\/li\u003e\n\u003cli\u003ePhotograph or film your saltwater aquarium as usual, without changing your light or camera settings\u003c\/li\u003e\n\u003cli\u003eFit the protective lens cover when the lens is not in use, and wipe the lens with the cleaning cloth as needed\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eSuitable For\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSaltwater and reef aquariums lit with modern aquarium lighting\u003c\/li\u003e\n\u003cli\u003eAquarium enthusiasts and photographers who want to showcase coral colour\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eTailored specifically for the latest generation of smartphones and tablets, and attached with a universal lens clip.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat's Included\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1 x D-D Gen 2 Coral Colour Lens (Coral Spectrum Enhancer Lens) with an integrated circular polarizing filter\u003c\/li\u003e\n\u003cli\u003eUniversal lens clip for easy attachment\u003c\/li\u003e\n\u003cli\u003eRobust protective lens cover\u003c\/li\u003e\n\u003cli\u003eHigh-quality lens cleaning cloth\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does the Gen 2 Coral Colour Lens do?\u003c\/strong\u003e\u003cbr\u003e\nIt filters out the overpowering blue light from aquarium lighting so the full colour spectrum of your saltwater tank shows up in photos and video, without changing your lights or camera settings.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is new in the Gen 2 version?\u003c\/strong\u003e\u003cbr\u003e\nGen 2 has a CPL (Circular Polarizing Lens) filter integrated into a single lens. It delivers enhanced colour rendering across 15K and 20K spectrums and outperforms its predecessor.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill I need to adjust my reef lighting or camera settings?\u003c\/strong\u003e\u003cbr\u003e\nNo. The lens is designed so you can capture the full colour spectrum without altering your lighting or camera settings.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhich devices does it work with?\u003c\/strong\u003e\u003cbr\u003e\nIt is tailored for the latest generation of smartphones and tablets and attaches with the universal lens clip supplied.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs it only for saltwater tanks?\u003c\/strong\u003e\u003cbr\u003e\nIt is designed for saltwater aquariums, where strong blue lighting is most likely to wash out coral colours.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat comes in the pack?\u003c\/strong\u003e\u003cbr\u003e\nYou receive the lens with its integrated circular polarizing filter, a universal lens clip, a protective lens cover and a lens cleaning cloth.\u003c\/p\u003e","brand":"RARE FISH MARINES","offers":[{"title":"Default Title","offer_id":39683227156534,"sku":"5060444553857","price":695.0,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0151\/9016\/3510\/products\/dd-gen2-coral-colour-lens-packaging-saltwater-aquarium-photography-enhancer.jpg?v=1743700766"},{"product_id":"d-d-coral-viewing-aquarium-glasses","title":"D-D Reef Viewing Aquarium Coral Sunglasses","description":"\u003ch2\u003eD-D Reef Viewing Aquarium Coral Sunglasses\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eD-D Reef Viewing Aquarium Coral Sunglasses\u003c\/strong\u003e are orange-tinted coral viewing glasses for reef keepers who want to see their saltwater aquarium in a more natural-looking light. They filter the actinic blue light common in reef tanks and also give UVA protection and glare reduction for everyday outdoor use.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDistinct orange tint that acts as a filter, reducing the prevalence of actinic blue light common in saltwater aquariums.\u003c\/li\u003e\n\u003cli\u003eLets you appreciate corals and fish in a light that mimics their natural environment, revealing a vibrant range of colours usually hidden by the blue light.\u003c\/li\u003e\n\u003cli\u003eBuilt-in UVA protection to safeguard your eyes from harmful ultraviolet rays.\u003c\/li\u003e\n\u003cli\u003eGlare reduction from the sun, computer screens and reflective surfaces such as roads, water and snow, which helps minimise eye strain and reduce the risk of headaches.\u003c\/li\u003e\n\u003cli\u003eDesigned to aid in preventing melatonin suppression, which can support better sleep quality.\u003c\/li\u003e\n\u003cli\u003eA stylish design you can wear at the tank and away from it.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eHow to Use\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePut the sunglasses on when viewing your corals and fish under actinic blue lighting to cut back the blue wash and bring out more colour.\u003c\/li\u003e\n\u003cli\u003eWear them outdoors when you need UVA protection and glare reduction.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSuitable For\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eReef and saltwater aquarium keepers who want to see coral and fish colours more clearly under blue lighting.\u003c\/li\u003e\n\u003cli\u003eAnyone looking for UVA-protective eyewear for cycling, running, fishing, racing, skiing and climbing.\u003c\/li\u003e\n\u003cli\u003ePeople who spend long hours in front of computer screens and want to cut screen glare.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for viewing corals and fish in saltwater aquariums, particularly tanks lit with actinic blue light.\u003c\/li\u003e\n\u003cli\u003eThey are worn by you, not placed in the tank, so they work with any setup you already have.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLens tint: orange\u003c\/li\u003e\n\u003cli\u003eEye protection: UVA\u003c\/li\u003e\n\u003cli\u003eGlare reduction: sun, computer screens and reflective surfaces such as roads, water and snow\u003c\/li\u003e\n\u003cli\u003eFunction: actinic blue light filtering for coral viewing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003ePlease Note\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis product is a vision-enhancing tool designed for viewing corals in aquariums.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat do the orange lenses do at the aquarium?\u003c\/strong\u003e\u003cbr\u003e\nThe orange tint filters the actinic blue light common in saltwater aquariums. This lets you see your corals and fish in a light closer to their natural environment, with colours that blue lighting often hides.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo they change the lighting in my tank?\u003c\/strong\u003e\u003cbr\u003e\nNo. They are a vision-enhancing tool that you wear. Your tank lighting stays exactly as it is, and only what you see through the lenses changes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo they protect against UV rays?\u003c\/strong\u003e\u003cbr\u003e\nYes. They have built-in UVA protection to safeguard your eyes from harmful ultraviolet rays, so you can also wear them outdoors.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhich outdoor activities are they suited to?\u003c\/strong\u003e\u003cbr\u003e\nThey suit cycling, running, fishing, racing, skiing and climbing, where UVA protection and glare reduction are useful.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill they help with screen glare?\u003c\/strong\u003e\u003cbr\u003e\nYes. They are designed to cut glare from computer screens as well as from the sun and from reflective surfaces like roads, water and snow. This helps minimise eye strain and reduce the risk of headaches.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan they help with sleep?\u003c\/strong\u003e\u003cbr\u003e\nThey are designed to aid in preventing melatonin suppression, which can improve sleep quality.\u003c\/p\u003e","brand":"RARE FISH MARINES","offers":[{"title":"Default Title","offer_id":39683236167734,"sku":"13425","price":165.0,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0151\/9016\/3510\/products\/dd-reef-viewing-aquarium-coral-sunglasses-uva-glare-reduction-orange-tint.jpg?v=1743700724"},{"product_id":"d-d-aquascape-construction-epoxy","title":"D-D Aquascape Construction Epoxy","description":"\u003ch2\u003eD-D Aquascape Construction Epoxy\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eD-D Aquascape Construction Epoxy\u003c\/strong\u003e is a two-part epoxy putty for bonding live rock, positioning corals, making clam bases and repairing leaks in saltwater and freshwater aquariums. It suits reef keepers, aquascapers and fragging hobbyists who need a reliable underwater adhesive, and it also works for repairs in preformed ponds and around the home.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eKey Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDeveloped specifically for saltwater and freshwater aquariums and other underwater applications.\u003c\/li\u003e\n\u003cli\u003eStickier than most epoxies, so it bonds more easily to wet substrates.\u003c\/li\u003e\n\u003cli\u003eHelps you build complex live rock structures and avoid rock falls caused by turbo snails, sea urchins and strong current flow.\u003c\/li\u003e\n\u003cli\u003eThe Purple version dries underwater to the colour of coralline algae, so it looks more natural in a marine tank before true coralline algae encrusts it.\u003c\/li\u003e\n\u003cli\u003eVersatile enough to handle repairs and bonding jobs both in the aquarium and about the home.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eSuggested Uses\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBonding rock to rock and making rock bases during aquascaping.\u003c\/li\u003e\n\u003cli\u003eBonding and positioning corals within the aquarium.\u003c\/li\u003e\n\u003cli\u003eFragging corals onto frag bases and preparing coral frags.\u003c\/li\u003e\n\u003cli\u003eMaking clam bases, which helps protect clams from being attacked, and ultimately killed, by bristle worms.\u003c\/li\u003e\n\u003cli\u003eRepairing leaking pipework, broken equipment and leaks in general.\u003c\/li\u003e\n\u003cli\u003eBonding items to the aquarium glass.\u003c\/li\u003e\n\u003cli\u003eRepairing liners and preformed ponds.\u003c\/li\u003e\n\u003cli\u003ePlus 1001 other general uses in the aquarium and about the home.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eHow to Use\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTake care not to overmanipulate the putty underwater.\u003c\/li\u003e\n\u003cli\u003eIf the aquarium water starts to become cloudy, stop using the epoxy immediately and allow the water to clear.\u003c\/li\u003e\n\u003cli\u003eColour note: the Purple version dries underwater to the colour of coralline algae, but when it cures out of the water the colour is darker, representing deep red coralline algae.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eSuitable For\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMarine aquariums: live rock structures, coral frags, coral positioning and clam bases.\u003c\/li\u003e\n\u003cli\u003eFreshwater aquariums: general bonding and repairs.\u003c\/li\u003e\n\u003cli\u003ePond repairs: liners and preformed ponds.\u003c\/li\u003e\n\u003cli\u003eEquipment and pipework repairs, and bonding items to aquarium glass.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMade for use in both saltwater and freshwater aquariums. The Rock Grey version is perhaps the more suitable choice for freshwater aquariums and for repairing liners and preformed ponds, but both colours can be used in any environment.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eType: two-part epoxy putty\u003c\/li\u003e\n\u003cli\u003eFormulated to be stickier than most epoxies for bonding to wet substrates\u003c\/li\u003e\n\u003cli\u003ePurple version: dries underwater to the colour of coralline algae and cures darker, a deep red, when cured out of the water\u003c\/li\u003e\n\u003cli\u003eRock Grey version: suited to freshwater aquariums, liners and preformed ponds\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eAvailable Sizes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAvailable in Purple and Rock Grey versions.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhich colour should I choose for a marine aquarium?\u003c\/strong\u003e\u003cbr\u003e\nThe Purple version is formulated to dry underwater to the colour of coralline algae, so it blends in naturally until true coralline algae encrusts it. Both colours can be used in any environment.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eIs the Rock Grey version better for freshwater or ponds?\u003c\/strong\u003e\u003cbr\u003e\nRock Grey is perhaps the more suitable choice for freshwater aquariums and for repairing liners and preformed ponds, although both colours can be used in any environment.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan I use it to stop rockwork from toppling?\u003c\/strong\u003e\u003cbr\u003e\nYes. It bonds live rock together into complex structures, which helps avoid rock falls caused by turbo snails, sea urchins and strong current flow.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat should I do if the water turns cloudy while I'm working?\u003c\/strong\u003e\u003cbr\u003e\nStop using the epoxy immediately and allow the water to clear. Take care not to overmanipulate the putty underwater.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy make a base for a clam?\u003c\/strong\u003e\u003cbr\u003e\nClam bases made with this epoxy help prevent the clam from being attacked, and ultimately killed, by bristle worms.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWill the colour change after curing?\u003c\/strong\u003e\u003cbr\u003e\nThe Purple version dries underwater to the colour of coralline algae. If it cures out of the water, the colour is darker, representing deep red coralline algae.\u003c\/p\u003e","brand":"RARE FISH MARINES","offers":[{"title":"Coralline Purple","offer_id":39683237150774,"sku":"5060078020008","price":299.0,"currency_code":"ZAR","in_stock":true},{"title":"Grey","offer_id":43972457365812,"sku":"5060078020015","price":265.0,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0151\/9016\/3510\/products\/dd-aquascape-construction-epoxy-aquarium-underwater-epoxy-saltwater-freshwater-pond-use.jpg?v=1743700712"},{"product_id":"h2ocean-true-seawater-refractometer","title":"H2Ocean True Seawater Refractometer","description":"\u003ch2\u003eH2Ocean True Seawater Refractometer\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eThe H2Ocean True Seawater Refractometer\u003c\/strong\u003e is a handheld salinity tester that measures the true salinity and specific gravity (S.G.) of natural seawater by refractive index. It suits marine and reef aquarists who want a seawater refractometer with a scale calibrated for the real thing, rather than a brine-based scale that needs a conversion factor.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy a True Seawater Refractometer?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAlmost all other handheld saltwater refractometers sold to the hobby are designed and calibrated for brine solutions (sodium chloride) and are not calibrated for the refractive index of natural seawater. Sodium chloride is the largest percentage of the salt in the sea, but significant ions such as magnesium and calcium give natural seawater (NSW) a different refractive index from brine. A standard brine refractometer therefore won't give the correct salinity for natural seawater unless a conversion factor is applied. This D-D refractometer is calibrated for seawater. When correctly calibrated, it gives true salinity results for aquarium use, with greater accuracy than was previously attainable.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMade for seawater: the scale is calibrated for the refractive index of natural seawater, not brine\u003c\/li\u003e\n\u003cli\u003eGives true salinity and specific gravity readings without a conversion factor\u003c\/li\u003e\n\u003cli\u003eAccurate automatic temperature compensation (ATC)\u003c\/li\u003e\n\u003cli\u003eEasy-to-read display with a scale of 0-40ppt\u003c\/li\u003e\n\u003cli\u003eCopper body that responds faster to ambient temperature changes than other materials\u003c\/li\u003e\n\u003cli\u003eHandheld, so you can test straight from the aquarium or sump\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eEasier to Read\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMost refractometer scales read from 0-100ppt, yet reef keepers only really care about the 30-40ppt region. This refractometer reads from 0-40ppt, which gives 2.5 times the resolution of a normal 0-100 scale.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow Auto Temperature Compensation Works\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSalinity is the mass of salt in a mass of water, so it does not change with temperature. A refractometer doesn't measure salinity directly. It measures the refractive index and displays it as salinity, and the refractive index of a solution does vary with temperature. This means a refractometer reading is always temperature dependent.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAn ATC refractometer has a bimetal strip inside that moves the reading scale as the temperature changes, compensating for the change in refractive index.\u003c\/li\u003e\n\u003cli\u003eIt is the temperature of the instrument, not the water temperature, that matters. The small test sample equilibrates to the temperature of the refractometer within seconds.\u003c\/li\u003e\n\u003cli\u003eOnce correctly calibrated at the set calibration temperature of 20°C, the refractometer can be used wherever the ambient (and therefore instrument) temperature warms or cools within the ATC range of 10 to 30°C.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eHow to Use\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCalibrate with the instrument at 20°C, which is close to the average room temperature in most cases.\u003c\/li\u003e\n\u003cli\u003eLet the refractometer stand at this temperature for 30 minutes to equilibrate before calibrating.\u003c\/li\u003e\n\u003cli\u003eUse a light source as close to daylight as possible. Refractive index also depends on the wavelength of light.\u003c\/li\u003e\n\u003cli\u003eTest with a small water sample. It will equilibrate to the instrument's temperature within seconds.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCalibration Reference\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eD-D refractometers are calibrated at 20°C. At 35ppt, the calculated specific gravity displays a reading of 1.0266. This is equivalent to a specific gravity reading of 1.0264 for a water sample at 25°C, using a standard hydrometer with a calibration temperature of 77°F or 25°C.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSuitable For\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMarine and reef aquariums filled with natural or mixed seawater\u003c\/li\u003e\n\u003cli\u003eHobbyists who want true salinity and specific gravity readings, rather than a brine-scale reading corrected with a conversion factor\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eType: handheld seawater refractometer with automatic temperature compensation (ATC)\u003c\/li\u003e\n\u003cli\u003eScale: 0-40ppt, 2.5 times the resolution of a 0-100ppt scale\u003c\/li\u003e\n\u003cli\u003eCalibration temperature: 20°C\u003c\/li\u003e\n\u003cli\u003eATC range: 10 to 30°C\u003c\/li\u003e\n\u003cli\u003eBody material: copper\u003c\/li\u003e\n\u003cli\u003eReading at 35ppt (calibrated at 20°C): specific gravity 1.0266\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's Included\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOne H2Ocean True Seawater Refractometer\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow is a true seawater refractometer different from a standard salt refractometer?\u003c\/strong\u003e\u003cbr\u003eA standard refractometer is calibrated for brine (sodium chloride). Natural seawater also contains ions such as magnesium and calcium, which change its refractive index, so a brine unit needs a conversion factor. This model's scale is calibrated for natural seawater.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat temperature should I calibrate it at?\u003c\/strong\u003e\u003cbr\u003eCalibrate at 20°C, and let the instrument stand at that temperature for 30 minutes first so it can equilibrate.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the water temperature affect my reading?\u003c\/strong\u003e\u003cbr\u003eIt is the instrument's temperature that matters. The small water sample reaches the refractometer's temperature within seconds. Once calibrated at 20°C, the ATC covers instrument temperatures from 10 to 30°C.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy does the scale only go up to 40ppt?\u003c\/strong\u003e\u003cbr\u003eAquarium salinity sits in the 30-40ppt region, so the 0-40ppt scale gives 2.5 times the resolution of a normal 0-100ppt scale, which makes it easier to read.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat specific gravity should it show at 35ppt?\u003c\/strong\u003e\u003cbr\u003eCalibrated at 20°C, it shows 1.0266 at 35ppt. That equals 1.0264 for a sample at 25°C on a standard hydrometer calibrated at 77°F (25°C).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat kind of light should I use when reading it?\u003c\/strong\u003e\u003cbr\u003eUse a light source as close to daylight as possible, because refractive index also depends on the wavelength of light.\u003c\/p\u003e","brand":"RARE FISH MARINES","offers":[{"title":"Default Title","offer_id":48612630987060,"sku":"5060078020091","price":1535.0,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0151\/9016\/3510\/files\/h2ocean-true-seawater-refractometer-precision-instrument-auto-temperature-compensation.jpg?v=1749020322"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0151\/9016\/3510\/collections\/d-d-the-aquarium-solution-collection.png?v=1793218687","url":"https:\/\/jungleaquatics.com\/collections\/d-d-the-aquarium-solution.oembed","provider":"Jungle Aquatics Pet Store","version":"1.0","type":"link"}