85 glass

[spudbuds]

The bank of the tank is likely not tempered. You can drill the back and do a calfo style overflow. I'm not a big fan of the siphon overflows, but they can work. The calfo style seems like it doesn't take as much room as a traditional overflow as well.

- Bill

[cocoa_pleco]

yeah, like spud said, check to see if the back is tempered, i know mine is since it has the warning on the bottom panel and side panels

[Tigerbarb]

An external canister filter is pretty much like a sump, just more compact and more pricey. If you can afford one of those it might be easier than building a sump.

[spudbuds]

I disagree. There are many advantages to having a sump that a canister filter can not provide (added water volume, a place for equipment, a place for a refugium). The list goes on and on. A canister filter can be useful on a SW tank, but it's not a replacement for a sump.

- Bill

[cocoa_pleco]

yep, a canister isnt a replacement, mainly because you cant have lighting in a canister, livestock, you cant hook up a skimmer, keep your heater in it, etc.

[Tigerbarb]

Never thought of that.

I heard that pet stores will usually arrange drilling in glass aquariums. Where did you get your 85g tank? Do you think it would be possible to take it back to the store and ask if they can drill the bottom?