mercredi 4 février 2015

what is this algae?

Hey guys, I have a 29 gal bowfront and I have yellow to light brown algae that doesn't cover the rocks but is on rocks and attaches to air bubbles. I have no clue what this is but if someone could help me identify it that'd be great. My water is healthy, flow is good, but my lights are on 12 hrs a day. Is this too much? I've had this for quite a while but it hasn't spread to other rocks. Every time I blow off this stuff it comes back within 2 days.

Another question I have is I have black to dark green on my live rock but only where light doesn't hit it. I have treated the tank with slime remover because I had a cyano problem and maybe this affected it? The live rock has only been like this a few days.

Any help is appreciated thanks




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