Could I use a Rena XP2 Cannister filter to make a phos reactor? Sandwiching PhosBan in between form in one level & do the same for carbon in the top level.

May work, the only problem i see is that your flow may be to great and turn your phosban into a fine powder which could then be flushed out of the canister and be useless. Phosban granules are fairly soft just the action of grinding against one another under heavy flow can pulverize them.
Canister filters also tend to become phosphate generators if they are not kept very clean so keep a close watch on it if you go this way.

I have a flow valve that came with the XP2 so that you are albe to decrease the flow or even shut it off completely. I would also use a filter bag if needed. When I was using the XP2 on my 65 gal SW I would clean it every 3rd day.

Ok XP2 is up ad running with lower level with Pura Phoslock between 2 foam pads, upper level with Pura Carbon between 2 foam pads running @ 67 gph. Intake coming out of sump inlet side & returning in to pump side.

Question though has anyone ever used a product called Red Slime Remover by UltraLife? Experience's please.

I wouldnt use it. Ive been told by some that its good as a last resort in a FOWLR but not a reef. Try zeovit coral snow and cut the lights for 3 days. Worked for me!:biggrin:

Cheers
Ray

Bump