I hope you dont regret the green stuff ,I spent a long long time trying to rid one of my systems of it
. I used to rip buckets loads out. But then again that was um er ,before 2012 and as Ive mentioned things change. I used to welcome it in the Horse tank ,but hated it in the stick tank ,didnt make sense.
Pictures a 2x2x2 enclosed Kuda tank with twiddly fish.