to hang or not to hang

[aquaman2000]

i am still deciding wether to put a refugium or a sump or both in one

the following question came into mind while searching for the right filtration i came up on the hang type or the one that is on the bottom of the tank and uses plumbing
What is better to drill wholes into the tank or to have a hang on
a con in the hang on is the volume but anyway which is better?
thanks
i bought a 140 tank
will have FOWLR in it for a while then add corrals later on
and i will not have aggressive fish on the tank

 

[joncat24]

with a 140, I would get a dual overflow box hung on running to a refugium....thats just my opinion though

 

[lion_crazz]

You definitely want this tank to be drilled. You will not want to deal with hang-on overflow boxes.