corner overflow ?

[civic]

i just got a nother tank and i wanted to put in a corner overflow in it i have never done one be for should i make the corner overflow out of glass or plastic? the tank is 24"X18"x16" and i was just wondering what size of overflow should i make and what size of bulk heads should i use for the drain and the return thanks any help would be great

[dareefguy]

It is hard to get plastic to securly attach to glass, so if it is a glass tank it would be easier to use glass. the height you make the overflow will determin the water level in the aquarium. mine is 2 inches below the top of the tank and find it is usually sufficiant. I would go with an 1 1/2 bulkhead, 1 inch would probably be sufficiant but i would go with the 1 1/2.

[Myka]

I would use a 1" drain and 3/4" return. Most people put too much flow through their sump, which is just a waste of electricity and added heat. The top of my overflow is 1" from the top of the tank. I agree that you should make it out of glass, you can always silicone some black acrylic to it if you want to. It sticks good enough for that purpose.

[civic]

thanks for the help and i was just wondering should i drill the bottom of the tank or the back of the tank out thanks

[Myka]

If your stand is already built check that you have room to drill in the bottom. If that's the case, I prefer bottom drilling. =]

[civic]

yea thats what i wanted to do but was not to sure thanks for the help

[gadgetguy]

Only problem with bottom drilling is that, even if the sides of an aquarium aren't tempered, the bottom often is. If you don't want to risk it, drill the bottom corner of the back like I did.