Trouble with GHA in frag tank

[Sean Duggan]

Hey everyone I have a frag tank that I just can’t seem to get the parameters right. I have GHA growing and no matter how much manual removal I do or how much my tang eats I can’t get it under control. My nitrates are low at around 1 ppm but my phosphates are high at like .25 ppm. I’ve added the GFO recently to help with the phosphates but just can’t seem to get this under control. My corals though look fine all colored up and growing nicely.

 

[Retro Reefer]

Phosphate probably the biggest culprit.. try getting it under .1 along with manual removal of GHA and a sufficient CUC. If you can't get on top of it you may want to try something like vibrant, I have used it with great success on GHA but it may take several months to clear your tank.. this route also requires lots of manual cleaning and removal of GHA along the way.

 

[waleedreef]

sea hare can eat hair algae.