sorry it's not brown, it's green algae,,,,,

[dacyn46]

yup I got that chemi clean stuff have used it when the cyano was real bad and still have half left was thinking to mix another shot glass for the tank but was not sure about the protein skimmer and the filters in the fluval dont want to waste the wonder cure lol (mostly concerned with the rocks they look awful and the feather dusters I think have all suffocated and died there are none left and there were close to 50 15 blue legged hermits and 15 astrea snails