It wouldn't use the air pump or tube as my canister filter output would be placed inside this breeding box. Regarding the flow, I think it would be so much that it would use the "emergency overflow" which is basically the rest of the length, so it would end up being 10" of overflow.
I love the idea of splitting the return. I think that's a fantastic idea and I could even have a ball valve cutoff on the hang on back portion to shut it off if I need to.
The bigger concern is the CO2 getting out during the spillover process, but with a high enough water level it shouldn't be too bad?
Cheap enough, I think I'll give it a try! I just have $10 shipping to lose out on if I need to return it.
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