I had an outbreak of this black hairlike algae type of stuff, which was later identified by one of the advisors as cyano
, Did every thing advised, weekly water changes cutback on feeding and lights, phosguard, hermit crabs, ammonia reducer,,,, in the end, I went home for christmas (from college) had a buddy feed them every other day. when I came back, the water level was about 4 inches low and the skilter was dry, but the cyano
was gone. I had been gone for about 2 weeks and the tank looked better than it ever had.
After words I had some thoughts on what made it go away.
1, I was doing all of the right things and eventually I won.
2, The source water had just enough po4
in it to feed this stuff, with the buddy not topping off the water, it starved out.
3, By not removing it weekly, perhaps it overpopulated and starved itself out.
I am not sure why it went away, but IN THIS CASE what seemed to work was for me to quit messing with it.
Not really an answer to your question, but this is my story