6 foot tank overflows

[albertan22]

I'm looking to upgrade from my 4' 120g tank to a 6' 180g. My 120g has a single corner overflow which has worked fine, how many overflows does a 6' tank need to keep from getting scummy at the surface? I'm not excited about a center overflow but don't know how plumbing would work with dual corner overflows since I want to use herbie style overflows and one corner would end up with a long horizontal run. I'm going to have the tank built so all options are open to me.

 

[fishguy306]

I hated trying to run a herbie in a dual corner overflow tank. Personally on a 6' tank if I was having it built I'd still just do a single corner overflow or an external overflow box.

 

[on the spot]

If you have the room I'd opt for through the back. Off the shelf components. Many slim profile options available. next to no real estate lost.

Through the bottom? at 6 foot a stock tank makes the most sense. Dual corner/dual herbies.

HTH

 

[ca1ore]

Corner overflows stink. If you’re having the tank made go with one of the modern ghosts-style overflows. A couple of the companies make 36” long models. That’s what I’m using on my 8’ tanks and it works very well.

 

[clevername]

If you have the room I'd opt for through the back. Off the shelf components. Many slim profile options available. next to no real estate lost.

Through the bottom? at 6 foot a stock tank makes the most sense. Dual corner/dual herbies.

HTH

If the OP is still interested this is what i did. 16 inch shadow box. on my 210