Planted Tank Obsessed
Join Date: Oct 2010
Location: Cartersville, GA
It's not the "tiny bubbles," but the amount of CO2 in the water. If it is not diffused in the water, the bubble expels it's contents when it hits the surface. The tinier the bubble, the less wasted CO2. The better it's diffused, and the longer it's in contact with the water, the more CO2 in the water column for the plants to process. I use my canister filter to diffuse the gas. No bubbles at all and I direct the flow towards the plants. Extremely efficient as 1 bps = adequate CO2 for my 75G.
"If neither foes nor loving friends can hurt you,
If all men count with you, but none too much..."
Fluval Ebi Pimp #29