So recently some corals haven't been doing to well. My acan is losing flesh, stunner chalice is slightly dying on the edges and the acros don't seem to be extending there polyps all the way. All the monti's tho along with the cyphastrea and euphilias are doing great though. I don't really test much so I don't know the parameters off the top of my head. I do 25% water changes every week to week and a half which has always worked just fine for me. I'll test things once I get a chance but in the meantime does this sound like a deficiency somewhere? Most of the corals are sps
at this point so I was thinking maybe doing just water changes isn't keeping up anymore with replenishing the necessary elements?
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