Planted Tank Guru
Join Date: Jan 2010
Location: Contra Costa CA
Standard yeast only gives me good production for 3 weeks.
First week it is ramping up, getting good.
Second week is full production.
Third week is going downhill.
I can improve production by stirring it (Swirl the bottle around, do not get liquid on the tubing).
I usually run more than one bottle in each tank and overlap so the lower level of production out of one bottle is paired up with the higher level out of the other.
Sounds like champagne yeast is the way to go!