Hey guys so we just got our 150 sealed and now need an overflow and a sump(NOT DRILLED) but dont know what size would work for 72x18x26 any help will be much appreciated. Thanks!
I would drill it. The bean animal overflows way is super quite. Its a lot cheaper than external overflows and the tank only partialy needs to be drained. Just make sure the back isn't tempered. The manufacturer will tell you if you cant find it in the paper work.
We picked it up used and have no way of figuring out the manufacturer i was planning on using an over flow and sump from my other 55 long but something tells me it wont work.
If its not filled yet, the stand should be open in the back. And you should be able to get a sump in that way. Take another shot of the stand with its doors open.
You couldn't upgrade the flow for that overflow box, you'd have to get a new one, and then a new return pump. But you could set up the tank with what you have, then upgrade when you have the time and the cash.