I wouldn't. That Mag24 is a huge power hog and will really heat up the tank. You would be putting a severe flow restriction on it. Sell it and get the right size pump.<a href=showthread.php?s=&postid=6526055#post6526055 target=_blank>Originally posted</a> by lunner
May be this is the plan then:
55gal -> single LR overflow -> Ecosystem 3012 sump -> mag 7 ->
Right now there is a mag 24 that is doing the return, but that is to a 90gal... and there is a ball valve at the outlet flow of the water pump to control flow rate. Could I just keep that basic setup instead of changing to a mag 7 for a 55gal?