Hows it been guys and gals. Long time no talk to. Well I still have a couple of small reef tanks. 20 and 40 gallons. So heres what I need help or advise with.

I am picking up a 110 tank that is full of Liverock this weekend. There hasnt been fish or corals in this for about a year. He has kept the pumps running just for the liverock. But no lights in a while. He says it still has good color to the rocks. I doubt he has been feeding it either. It also has a sand bed that has been in there for about 10 years. Also has a wet dry with balls that I can keep in it for now to help the startup. This will be used as a refugium later without the balls and an added tank for a fuge too.

I am going to move my 2 small tanks into this new tank. I'll need to get it going on Monday for the liverock that he has in it now. I'll save as much water of his that I can but it wont be much. I'll have about 40 gallons total from my existing tanks to use if this will work out. Can I use the water saved from his tank along with mine and then add new water and put all my Liverock into the new tank? Fish and corals included. OR. Should I set up the tank with only his liverock and new sandbed and get it to cycle first? Or put in only my LR that doesnt have colals on it so nothing will be killed and then add my stuff later.

So with all of this I think it's enough that you understand what I have to deal with.

Thanks for all the help in advance.
Johnny