Refugium In An All In One System?

[Colonials66]

Hi all,
 
I have a saltwater tank, an Aqua One model, with the sump all in the back. Its been set up for about 6 months now. I have been reading about the advantages of running a refugium in the sump of a tank. My question is, would I be able to run one in the sump at the back, or for it to be viable would I have to run a sump that is separate from the tank but still sharing the same water supply, like a normal sump?
 
Thanks

 

[ech0o]

If there is enough space in the sump for you to stick a bunch of liverock and macroalgae, and a light over it, you should be good to go!   I use a modified Aqua Clear filter as a refugium, it has its own seperate light bar, and is filled with macroalgae.