Originally Posted by joseramentol
oh you see that is some good info i didnt know
ill prob have to get about a 700 also since my fish tank is going to be in a pretty high stand how tall did you make yours?
also for the overflow were exactly does it have to sit the pipe that gets the water in, does it have to be right on the water top or can it be lower
My DIY stands about 3'.
For an overflow, you have 3 main options...
1) you buy a hang on the back (HOB
) overflow ($40+) then attach PVC
or flexi pipe to drain into the sump. Pros are its fairly cheap, easy add-on. Cons are if the power stops you can risk breaking the siphon and flooding.
2) DIY PVC HOB
, same as above except it's really cheap, ($15ish) pros and cons the same as above. I have this on my 72G, works great.
3) you drill the tank through the back or the bottom, MUST make sure it's not tempered glass (tempered glass breaks when drilling, bottoms usually are, backs are occasionally) you can do this at most glass shops (around $10-$15 per hole). Then you put a bulkhead (get them on eBay for around $5-10). Then you get an overflow box (3-sided without back) and silicone it in around the hole. Most expensive option, but it is the best. This is what I'm doing on my 55 build thread.
You might want to wait for me to upload that video when my tanks setup so you have a good idea of how it works.