> WildCat thanks for your reply > Ok
> Cyano die very fast in 2 days but it come back more fast >
Do you make water change after blackout ?
A W.C is higly recomended after a blackout, because algae dead during it leave some waste in water column...You must remove this !
Then, if cyano stay in your tank, it's maybe due to over Fert ?
It was probably my problem too...so I have proceeded like that :
50% Water change > 4 day blackout > 50% Water change > light reduced to 8 Hour > Begining Fert normaly.
give us news,
Wildcat