Planted Tank Guru
Join Date: Nov 2009
Location: Missouri united states
I generally harass the stuff whenever it appears in my tank's.
Pull it off wood,rock's,pull it out of substrate,clean it from glass,spray bar's,heater's,etc.
Keep filter material clean monthly.
I personally believe it is tied to maybe excess organic matter and have found that the above measures work for me.
Eventually,the stuff get's tired of trying to get a hold in my tank's.
Volumes of thread's abound about possible causes in high energy tank's,low energy tank's,low flow,high flow,etc.
Only can share what work's for me.