Unless you lay all the details out on the table, you'll get generic answers.
Some of this is in your 60G thread, but we have no idea about current lighting schedule/distance, ferts, etc.
A pic of the algae in question can be useful. Several types are commonly called BBA.
Is the algae on the substrate in a high or low flow area, or distributed evenly? Is it on plants? Particular ones? Any noticeable relation to lighting distance or high/low flow there?
Yes, it is my 60G (I can never find time to update my journals anymore)
My current set-up:
-Lights are 2x T5HO (meant for hydroponics) 12" above tank. Puts me at ~45-50 par at the substrate
-5lb CO2 tank with Fisher dual gauge regulator, Brass CGA inlet, burkert solenoid, Ideal needle valve running at ~6bps (hard to count)
-EI dosing per Yet Another Nutrient Calculator on a 60G tank (was dry dosing, just switched over to liquid)
-Dirt capped with Flourite
-60% WC weekly
11am-2:30pm & 5pm-8:30pm
1pm-4pm & 6pm-10pm
pics (I'm ashamed to show them
All of it is scattered throughout the tanks. The most is on my Anubias. It grows on my Anubias Nana and Amazon Sword the most, then usually on equipment and the substrate. I will probably end up cutting that leaf off of the Anubias and a few other leaves as well. The Anubias and Amazon Sword are both in very high light areas of the tank. They both get hit with a lot of light. I've also heard that Flourite likes BBA, but that may be a myth, who knows. The algae is found in both high and low flow areas, it seems to like both.
A few months ago I moved my powerhead to the other side of the tank so now the flow out of the canister filter is getting blown out towards the front glass pane and to the other side, while the powerhead blows from the other side along the back wall. I used to have both on the same side, not sure if that would have anything to do with it.
If you have any other questions, just ask