What is this?

Weatherboy

Member
So, all seems well. Rock becoming more live, still not much algae on glass. My fish seem okay. Water quality all good.

But my sand is dirty, almost as if live rock is growing on it. To me it looks ugly. Do I clean the sand? Do I get a bigger CUC (just a few snails and crabs and a couple other things).

And...at this point, buy a golby or yellow tang? One I could use, one is pretty.

Thanks.
75 gal FOWLR 5 months old.
 

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