ph - 6.6
kh -2
light - 55W PC on for 14 hours/day

How's your nitrate?

This is just anecdotal, but the last time I had BBA, I had let nitrate drop to
zero.

You've got almost 3 wpg, and I assume from your pH and KH that you're injecting
CO2. You're adding PMDD, which is good, but you may also need to
macronutrients like nitrate, phosphate, and potassium.


Leigh

http://www.fortunecity.com/lavender/halloween/881/