Macro Algae for Sale

Macro algae for sale for refugiums and display tanks

Macroalgae are large, plant-like algae. Our macro algae for sale include chaetomorpha, or chaeto, which is the most popular choice for a refugium. Macroalgae soak up nitrate and phosphate as they grow, so they help keep nuisance algae out of your display tank.

Why reefers grow macroalgae

A clump of chaeto in a lit refugium acts as a natural filter. Then, every few weeks, you harvest some, so the nutrients it absorbed leave the tank with it. Also, macroalgae give copepods a safe place to breed, which helps feed fish like mandarins.

Common questions

What light does chaeto need?

A simple refugium light on a schedule opposite your main lights works well.

Why is my chaeto turning white?

It may be starved of nutrients or light. So a little more light, or slightly higher nitrate, usually helps.