Alla alger beror på ammonium/syre-instabilitet, tex pga överansträngt filter eller botten. Toffsalger också, men toffsalger verkar i högre grad än andra alger uppkomma vid ammoniuminstabilitet när man även har CO2-instabilitet.
Tom Barr (BBA = Black Bearded Algea = toffsalger):
"You can cause an infestation [of BBA] via lowering the CO2, adding it intermittently etc.
If you keep doing that for sometime(weeks typically), you can induce BBA.
This is for higher light, well planted tanks that are doing well anyway(a control tank basically)."