overflow box

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Hi guys, I'm in Warminster 18974 and we just bought a 125 gallon tank. I would like to drill the overflow, but I have no experience with this. Is there anyone in the area who might be able to help ? Thanks in advance!

Hi, So I'm new to the saltwater aquariums and I'm getting a lot of information from the forums very helpful! So here it goes I've been looking at plumbing i bought a used 55 gallon tank that came with an HOB overflow. Now i did the glass check and i can drill my tank, which I'm planning to do...

Here's a complete look at the finalized project. This is a 29g saltwater tank with a 10g sump that features three baffles. The overflow box is one that I ordered off eBay from a seller named modularmarine - check them out!