I have a patch here and there of cyano bacteria which I'd like to remove.
It erks me because I've been lucky with my tank in the past, having none at all and then all of the sudden I arrives like a phantom plague!
My water quality is good so I can't figure out where it comes from. I'd like to siphon it out but I'm scared that it may spread further if disprupted. What is the best way to rid myself of this pesti crap?
Danny