So then.. could i do something like a 1/2" overflow and a 1/2" return? It's only a 25G tank.. so i don't think it would need 600GPH.. but heck, i wouldn't know anyways.
Also, is there a limit as to where i can cut the holes in the tank? As in.. how far away should i be from the edges of the tank?
Nevermind.. glass-holes doesn't have a 1/2" overflow kit. They only have a 1" overflow kit. Alright then.. i guess ill be doing a 1" overflow, and a 1/2" return setup. Thanks for all the help guys.