okay i know there are tons of DIY chapters on this but i need more direction.
so i have a 240G that is drilled, I looked at the holes and they are both 1 3/4" and about four-six inches fron the side wall can i still do a corner overflow?
my main question is how big of a sump tank do i need to comfterably place everything i need in there, spaces in the 240G cabinate is 2 1/2' tall X 8" long so id like to have a refugium on the sump, remember this is all freshwater so what would be the best ideas for the refugium.
i can get my hands on what i think is a 40G tank that i can put my stock in temporarily and use my 55G as the sump tank.


so i have a 240G that is drilled, I looked at the holes and they are both 1 3/4" and about four-six inches fron the side wall can i still do a corner overflow?
my main question is how big of a sump tank do i need to comfterably place everything i need in there, spaces in the 240G cabinate is 2 1/2' tall X 8" long so id like to have a refugium on the sump, remember this is all freshwater so what would be the best ideas for the refugium.
i can get my hands on what i think is a 40G tank that i can put my stock in temporarily and use my 55G as the sump tank.

