Under a $100.00 and you are probably not going to get a skimmer that can do what it says it can. There is a Dual Bak-Pak, but before I would do that I would get an Aqua C Remora. Rated for 75gal. A skimmer is an item that you don't want to skimp on and must trust that its doing its job properly. Its the best $150.00 you'll spend.