So I've bought 6 sponge filters for fry tanks. I'm looking to get a large air pump that could handle up to 24 sponge filters(for future expansion). Any thoughts and or recommendations. The only thing I know is I don't want a blower, they cost so much and use to much power. If you could do me the honor of recommending something under 100 dollars that would be amazing. I've been looking on kensfish.com and there are just so many options.