Question on converting a 45 gallon tank

[SaltyJim]

It would work, but you would not get the same flow from a canister. And, with a closed loop, you usually elevate the pump (to reduce plumbing, which reduces head pressure) which might increase flow as well. I think in the mean time, you could use canister to achieve the same results, until you get a larger pump. Just plan your plumbing to be able to upgrade.

[SaltyJim]

Here is a closed loop that was just recently for sale here. Might give you a better idea of what we are talking about.

http://www.maast.org/index.php?name=...pic&t=8122