I occasionally get BBA and recently had a hair algae issue. I have a standard 20 gallon tank. The filters I have on it currently are Fluval 206, Aquaclear 50 and a dual sponge filter.
The reason I wanted to add the AquaClear 50 was because water circulation wasn't reaching the tank in all directions. The Aquaclear only has biomedia.
Also, I have the CO2 Diffuser right next to and pointed towards the 206's intake.
Would this help increase the CO2 throughout the tank?
I've read on different articles that water movement helps with the distribution of the CO2? I also dose EI Ferts with an 8 hour photoperiod with dual 6500k T5HO bulbs.