Opinions needed: mag-drive pump size for a 120 gallon?

  1. A

    AquaticIshy Initiate Member


    I'd like to get opinions on what some people use for their larger tanks (100+ gallons).

    I'm building another sump for a new 120 gallon tank. It's a non-drilled tank. I was considering getting a dual overflow box (with 2 draining systems instead of one, with one (possibly two) return pumps. What would he monster tank keepers on here recommend? The tank will be housing a few fingerling butterfly koi until they are big enough to be released into the pond in my complex.

    Any input would be greatly appreciated.

  2. Coradee

    Coradee Moderator Moderator Member

    Welcome to Fishlore, hope you get some responses today