2L soda bottle and original (2 cups sugar; 1/2 tsp. yeast) recipe. into bubble ladder for me. I also run an airstone through a sponge filter 24/7. Haven't gassed one yet.
Your minimum CO2 output would be to use a bubble ladder or a bell type diffusor. Then the bubbles that don't get dissolved into the water get wasted to the atmosphere by rising to the surface quickly.
What type of diffusion are you using in the 10G? DIY or pressurized? Reactor or diffusor? Airstone w/pump or not?
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