It's a glass tank. What fun is drilling acrylic? I think the pump I was thinking about was closer to 600GPH at 0' head, so I figured that 400GPH is fairly conservative. Even if it's a little less, I don't mind because I figured there will be around 60 total gallons in the system give or take and even 5X turnover through the sump is 300GPH.

My wife makes tasty shortbread cookies with her cookie press. The problem is that the recipe she uses usually makes around 200 cookies, so I'm eating them for a week at work with all of my coworkers.