what kind of setup are you using for the refugium, are you making it yourself or buying a pre-made one?
i ended up buying a pre-made one b/c i got a great deal on it an it fit nicely under my stand (it has three compartments the first is where the water comes in from the overflow then it spills into the second chamber which is my refuge area and then that spills into the final compartment where the return pump is) - plus i dont have to worry about leaks or anything like that
all i did was add a deep sand bed of agrinite reef sand (or live sand works good) then i bought some macroalgae from a lfs (guy that works there had a big bag that he brought from his home tank that was filled with 4-5 types of algae) thats really it i just let the system run and take care of its self -- i was gonna add the miracle mud but i never got around to it but i was told its great for establishing a refuge
i really like the pre-made sump/fuge that i bought it works really great and is nice and compact, i have friends that have built there own and they work fine but i really didnt have the room for multiple sumps, etc.