I've got a Moeller that has a recirc/filter setup cobbled together like a grayline. It's a 30 gallon, I think. The water heats up really fast in it. When I used it, I would carry a 48 quart cooler full of ice to keep it cooled down. I also built one out of a cooler which has a super bait tank like filter in it. It works much better than the Moeller but doesn't have enough capacity for a full day of fishing big gizzard shad. All that being said, Those tanks and a couple of others sit in my shed collecting dust while a Super Bait Tank sits in the boat. I'd say bite the bullet, buy a good tank right off the bat. The pleasure you get out of it will be remembered far longer than the price.