What is this algae!?!?

[natesreef]

This stuff will not go away. My phosphates are 0. What is it?

 

[impur]

I'm sorry to say but it appears you have dinoflagellates. The reason your PO4 is 0 is because it is being consumed before it gets into the water column.

Here is some reading that might help you out: Problem Dinoflagellates and pH by Randy Holmes-Farley - Reefkeeping.com


Good luck.

 

[YVR]

Dino problems are usually caused by aquarium water with excess nutrients like phosphate, nitrates etc. You can try and siphon out what you can to remove the algae in the short term. In the long term you may have to examine how you care for your tank. There are some commercial dry foods also contain excess nutrients and other undesirable things like nitrates, phosphates etc so I strain/rinse my fresh/frozen foods before feeding my tank. You may want to consider feeding your fish less often. Also, changing your photo period, light bulbs more flow, using RO/DI water and a high quality salt with little if any NO3, phosphates etc like Tropic Marin may help too. Adding a phosphate remover and increasing flow in your tank may help too.