| Blue Green Alfgae on Substrate?
I have this weird film/dusting of what looks like a blue green algae on my substrate and was wondering of anyone knew what it was. I vacumm it up and it returns by the next day or two.
105 gallon - 6 months
Fish only
Lionfish (7"), triggerfish(5"), wrasse (6"), Clownfish (2"), blue damsel (2")
I had some recent problems with the tank which I hope are now under control. I thought I had an outbreak of ich and used some copper. Right before that I cleaned my filter. At about the same time my nitrates zoomed to about 160 so I did some 50% water changes every couple of days for a week. That keep the nitrate down but it would come right back up so I bought a denitrator. The copper may have hurt my biological cycle as ammonia and nitrate then went sky high. I used some Kordel's to bring them down, which seemed to work well. Ammonia at .25, no nitrite and nitrate seems to have stablized at around 60ppm. I am waiting for the denitrator to cycle and kick in which might take another couple of weeks.
I probably tried to make too many changes at one time...live and learn. But I still have this weird blue green dusting of something on my substrate.
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