noticed a small patch of film(cyano??) dark red/maroon forming in one spot near bottom on a rock. parameters are all in check, so i suppose its daily feeding. gonna cut back and see what happens. the only thing that kinda upsets me is that it formed 4-5 inches IN FRONT of the powerhead lol, so much for not enough flow. hopefully its just the feeding. the only other thing which it could be is that my light fixture was used, therefor so were the bulbs. Person i bought from said they were used for 5 months and ive been using since Jan 08, possible they need to be re-placed. Going to do that tonight anyway, but the area with the cyano/film is in the shade so not really quite sure how lights would affect that. If the lights were bad wouldn't i have other nuisance algae growth elsewhere i.e. on glass etc.. on a side note i'm pleased to see vibrant purple/pink growth spots appearing on back glass,return nozzle,overflow and even the mag float!! just curious why it doesnt form on front or side glass.
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