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Re: Blue green algae question

Olga wrote:

> What is it exactly that blue-green loves?

IME, cyanobacter loooves phosphate.   I've had a couple of outbreaks in one
of my tanks with a fairly heavy fish load; I don't remember what the
phosphate level was when tested but I remember it was on the high side.   A
33% water change and not feeding for a few days cleared it up.

Most LFS folks will tell you that phosphate doesn't matter in a FW tank.
Don't you believe it!  :)