I wanted to do a trickle tower sump on a future turtle tank . I was gunna use a 110 gallon stock tank as the turtle tank and I want to use the drain plug on the stock tank as an overflow (yes the tank will be lifted) and run a trickle tower too it. And I was gunna use 3/4" pvc and use a 500 gph powerhead as the return on top of using my magnum 350 canister . I had this posted on a turtle forum but someone told me to bring it here. Thought it couldn't hurt ! Amy thoughts