RadleyMiller;589349; said:Good idea, even though they will flow the same because it is the sump's pump that dictates how much water flows into the tank and then into the sump. With bigger holes you have more options on output of the pump and you can add on such things such as UV sterilizers and such.
I agree with rallysman, SHOW US SOME PICS!
and if a fish dies and plugs one overflow, you still have the other for backup











