Need help with a filter

[jpappy789]

You can also redirect flow for HOBs, you just have to be creative really.

 

[Paintballer99]

So as long as i can put the output under water, i should be fine?

 

[jpappy789]

Well, sort of. Even a ripple can get enough surface agitation for gas exchange and *poof* there goes the excess CO2.

 

[Paintballer99]

Ok i need to decide which one is going to be better for me...thanks

 

[fwiffo]

build a canister filter to run inside the tank. that's what i did and its awesome. no co2 gassed off and sterling filtration.

http://www.aquariacentral.com/forums/showthread.php?t=171231