Refugiuem advice please.

[G1GY]

I have a 90 gallon with 100 lbs of Indo rock. I'm using a closed loop pump system (Mag 18) and a fluval 403 for my carbon (Other than that the 403 is empty.) I'm also using a Remora skimmer which is working great! (I made a good move ditching the sea clone!)

Is it worth the effort to put a Aqaclear 500 on the back for a little HOB refugeium?

I kind of think so, but please tell me if you think it's a waste of time.

Thanks for your input.