Closed loop
 

90 G with dual overflows, what is a good design for a closed loop? I got a MAK4 return at about 4 ft of head....if the info is too vague.... :rolleyes:

bump :rolleyes:

it will depend on what you would like.

I would go with 1 in and 2 out .what are you running for a return pipe?
are you running 1 pipe of is it 2 return pipes

HOw many holes do you want in your tank or you can do the cheap way and have it piped out with PVC and piped back in with PVC. Its all up to your self


Mike