My hope was that they would be at or near breeding size by the time the pond warmed up enough to put them back in. Thought of starting them with a smaller amount of water, and increasing water as they grew. Problem is, this would not work with one of those filters that hangs on the back of an aquarium...so looking at canister filters.

Any ideas or input on off-the-shelf filters? What i have seen so far would cost $140-$300 for canister filters. The ones that hang off the back of an aquarium I can get for about $50 each...would take three to four for a full tote.

Sean