reactor----in the sump or out?

[PoonTang]

Inside. I cannot afford a leak as my tank is in my Living room sitting on a hardwood floor.

[whatcaneyedo]

Hanging on the inside. I dont have the O rings installed right because I find doing so to be a nuisance plus I have lots of room in my sump.

[The Grizz]

Mine are both in the sump in there own chamber.

[banditpowdercoat]

Mines outside, sitting on the stand floor. I cant get into sump very well. Some idiot made the stand to low!!!!!