In a sea tank, if there is a nutrient salt that exceeds the standard, it will cause a fatal blow to the corals! This is phosphate, which is PO4. Normal seawater should maintain PO4 below 0.05ppm. If it exceeds the standard, you need to consider reducing phosphate to ensure the health of corals!

There are three main ways to reduce phosphate:

Adsorbent: Typically, adsorbents represented by biological beans are used.

Chemical precipitation: The typical method is to directly add lanthanum chloride heptahydrate to the sea tank, and use La+3 + PO4-3 to generate white precipitate La3PO4 to directly reduce PO4. If you use some kind of powder or liquid to control PO4, and a white smoke state occurs when you add it to the tank, it most likely contains lanthanum chloride.

Bioutilization method: Add carbon sources or organic matter to stimulate the growth of fish tank organisms (heterotrophic bacteria, algae, corals). The reproductive development of organisms requires a certain amount of phosphate, so the purpose of reducing phosphate is indirectly achieved.

How to reduce phosphate in a saltwater fish tank?