Description
When to use?
Stunted coral growth and the presence of unwanted algae is commonly an indicator of excessive phosphate in the water. Phosphate is a consequence of fish waste and while phosphate is essential for life, too much is detrimental. Phosphate is often also present in tap water, so can be inadvertently introduced during water changes.Anti-Phos is a fast-acting, easy-to-use liquid formulation of lanthanum that rapidly detoxifies phosphate, removing it from the water. Anti-Phos should be used whenever high phosphate is detected and following water changes to remove phosphate found in tap water.How to use?
Test your Phosphate levels using Marine Lab Phosphate Test.
SuperCarb and Phopshate Remover can be left in place during use.
Keep skimmers and UV filtration switched on if present.
Warning:
Water may become temporarily cloudy when applied – this is normal and indicates phosphate is being removed from the water.
NT Labs Anti-Phos for Phosphate Control in Reef Tanks
Stalled coral growth, a dull appearance and creeping nuisance algae are classic signs of excess phosphate. It builds up from fish waste and uneaten food, and is often topped up unintentionally through water changes since tap water can carry phosphate too. NT Labs Anti-Phos is a fast-acting liquid that binds phosphate quickly, helping bring levels back into a range corals actually thrive in.
Singapore reefers feeding heavily in warm, fast-metabolising tanks tend to see phosphate climb steadily, and our local tap water adds to the load with every change. Test before and after dosing rather than guessing, and bring levels down gradually so corals are not shocked by a sudden swing. Pair chemical removal with good husbandry: skimming, sensible feeding and consistent maintenance all keep phosphate honest.
Algae control starts with nutrients, so read our algae control guide and our marine skimmer guide to attack the source. Explore more conditioners and medication.

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