I am wondering if a skimmer rated for 200 gallons will even do anything on a 40 breeder. I always oversize my skimmers, but never quite this much. The 40 breeder is plumbed to a 20 gallon sump. The baffles allow for water level to be held at the manufacturer's suggested height, and the footprint will fit, however, with the bio-load being so much lower than what the skimmer is rated for, will the skimmer actually help? Are there any potential down sides? I'm confident that the bubbles will diffuse before reaching the return pump, so I am not concerned there.
Thanks for your help!