Lower lighting to 10 hours/day.
I'll try that.

If things were doing well with 2.6w/gal, why did you change?
well, I was designing an acrylic reflector and decided it would be really
easy to add on more bulb Silly me.

Get some KH2PO4.
I have phosphate, how much should I add? One grain every other day?

Thanx!!

Dave.