On orders over R999
On orders over R999 🚚💨
When can I expect delivery?
Gauteng (Jhb/Pta) deliveries typically take 2-4 working days, while nationwide deliveries can take 3-7 working days, depending on your location. Local and standard nationwide deliveries are shipped via Economy Road 🐌, usually through Internet Express Couriers.
If you prefer a faster 🚀 and more reliable shipping option, we also offer The Courier Guy during checkout in the dropdown selection. Please note that this option is not free, and you must choose it to use it.
If you're looking for a convenient way to pick up your order, PARGO offers over 4,500 locations nationwide through participating outlets.
How long does it take?
While PARGO is convenient and affordable, it's important to note that it is not the fastest shipping option. Parcels can take anywhere from 3 to 7 working days* to reach their destination!
No more waiting at home or work for deliveries! ⏰ Now you can pick up your orders from a locker location while you continue with your day. Depending on your location, delivery times to a Bob Box Locker can take between 3 to 7 working days!*
Calcium alone cannot form the skeletal material of corals and allow calcareous algae to grow. Some other substances are needed as well. A few other constituents are carbonate and bicarbonate. These two substances also have a major impact on the stabilization of the
pH in the proper range of 8.1 – 8.4. Such stabilization is also called buffering.
The total carbonate and bicarbonate concentration is also called carbonate alkalinity or carbonate hardness. The only difference between alkalinity and carbonate hardness is a conversion factor.
NSW has an alkalinity of approx. 2.7 meq/L or approx. 7.5 dKH when expressed as carbonate hardness.
For a stable system, the alkalinity or carbonate hardness should have a value similar to NSW or slightly higher and should preferably not fluctuate by more than 5%. This means a maximum fluctuation of 0.14 meq/L or 0.4 dKH.
Therefore an alkalinity test kit should be capable of measuring in steps smaller than 0.14 meq/L.
Conclusion:
Since the major buffer components used for coral and calcareous algae growth are bicarbonate and carbonate, they should be added to correct any decrease in alkalinity or carbonate hardness.
A properly formulated buffer should function in such a way that the corrective measures result in a long-lasting effect and should not upset the pH of the system. The alkalinity or carbonate hardness should be kept as stable as possible requiring highly sensitive and accurate means for testing.
The Salifert KH/Alk test is very straightforward. It measures in sufficient small steps of 0.1 meq/L or 0.3 dKH with a sharp color change. This makes the detection of important yet small changes possible.
The kit can perform approx. 100 - 200 measurements
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