Red Sea Phosphate Pro (PO4) Test Kit

Red Sea Phosphate Pro (PO4) Test Kit

Red Sea Phosphate Pro (PO4) Test Kit is a colorimetric phosphate test kit for measuring phosphate levels in aquarium water. It is made for reef keepers who want to support coral growth and help prevent algae outbreaks by keeping phosphate under control.

Why Measure Phosphate

Phosphate that creeps up in a reef tank works against you in two ways. High levels slow coral growth by interfering with skeletal growth, and they also feed algae. Keeping phosphate ultra-low supports faster coral growth and helps keep algae outbreaks from taking hold. You can only manage what you can measure, which is where a reliable phosphate test comes in.

Key Benefits

• Gives an accurate phosphate reading so you can see problems before algae takes over
• Helps you keep phosphate ultra-low to support coral growth
• Easy-to-use colorimetric comparator, so you read the result by matching colour
• Accuracy of ±0.02 ppm across a 0-5 ppm range
• Affordable reagent refills are available, so the comparator can keep being used after the first 100 tests
• Accurate phosphate and nitrate readings allow proper dosing and control of algae nutrient levels

Suitable For

• Coral reef aquarium keepers who want to track phosphate as part of their regular water testing
• Reefers working to prevent algae outbreaks and support steady coral growth
• Anyone dosing or adjusting algae nutrient levels who needs reliable readings to guide them

Compatibility

This kit tests for phosphate (PO4) in aquarium water. It belongs to a wider algae management range of test kits that also covers nitrate. Phosphate and nitrate are both algae nutrients, so testing them together gives a fuller picture of what is feeding algae in your system.

Specifications

• Parameter tested: phosphate (PO4)
• Number of tests: 100
• Accuracy: ±0.02 ppm
• Range: 0-5 ppm
• Test type: colour comparator

What's Included

• Phosphate test kit with 100 tests
• Easy-to-use colorimetric comparator

Frequently Asked Questions

How many tests do I get?
The kit provides 100 phosphate tests.

What range does it measure?
It reads from 0 to 5 ppm phosphate, with an accuracy of ±0.02 ppm.

How do I read the result?
The kit uses a colour comparator. You match the colour of your tested sample against the comparator to read the phosphate level.

Why does phosphate matter in a reef tank?
High phosphate slows coral growth by preventing skeletal growth, and it feeds algae. Keeping phosphate ultra-low supports coral growth and helps prevent algae outbreaks.

Can I refill the kit once the tests run out?
Yes. Affordable reagent refills are available for this kit.

Does this kit also test nitrate?
No, this kit measures phosphate only. Nitrate is covered by a separate test kit in the same algae management range.

When can I expect delivery?

• Gauteng (Jhb/Pta) - 1-3 working days
• Nationwide (Cpt/Dbn+) - 2-5 working days
• Outlying Areas - 3-7 working days

All orders are sent via Economy Road, typically through Fastway or Internet Express Couriers*. Estimated timeframes are not guaranteed. Once the order is collected by the courier, we have no control over third-party logistics and cannot make any time promises.

If you prefer a faster 🚀 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. Please pay careful attention to the cutoff times and delivery timeframe for these options during checkout.

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No more waiting at home or at work for your delivery. Simply choose a collection locker or pickup point and collect your order when it suits you.

Delivery times to lockers and pickup locations typically range from 2–7 working days, depending on your location.*

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Collection timeframes:

• Bob Box: Collect within 2 days of receiving your collection notification.
• PUDO Lockers: Collect within 36 hours of receiving your collection PIN or SMS notification.

If a PUDO parcel is not collected within 36 hours, it will automatically be transferred to the nearest PUDO Kiosk or Depot at no additional cost. The parcel will then be held there for approximately 2 days before being returned.

Please ensure you collect your parcel within the applicable collection period. Uncollected parcels will be returned to the sender, and additional shipping charges may apply should the order need to be resent.