Transferring fish from old tank to new.

[Humongous]

Hello all,

I'm in need of some advice. I currently have a 46 gallon tank with the following inhabitants.

1 small hippo tang (2 inches)
3 Green Chromis
2 Yellow gobies
1 Peppermint shrimp
20 hermit crabs
6 snails

1 Torch coral
1 colony of green star polyps.

I have almost finished their new home, a 210 AGA with a 75 gallon sump. It was filled with RO/DI water which is now at 79 degrees and s.g. is at 1.026. I have 90 pounds of live rock that has been in a curing tank for 4 months now just waiting to go in the bigger tank. I plan to take the extra 60 pounds of live rock out of the 46 gallon and transfer it to the larger tank as well.

Just yesterday I noticed that the hippo had a few spots of ich! So my question is how do I transfer the fish over to the new system? Do I need a QT tank to transfer them all in to? Or should I QT the 46 gallon tank? I don't want to start off my brand new setup with the introduction of ich.

I know about the treatment options, hypo, copper, etc, but I'm trying to figure out how to move these guys to their new home. Also, what should I do with the corals and inverts? Wouldn't they require QT'ing as well now since the parasite might be carried with them to the new tank?

Many questions, and I'm open to many suggestions.

Thanks for the help!!

[discusone]

I would transfer the crabs,snails and live rock with the torch/polops to the new tank.Under no circumstances put any of your fish in the new system.Leave the new system fishless for at least 5 weeks.In the meantime,get several pieces of pvc tubing (home depot) and put in the original tank still containing your fish for security.Really,with the size of the tank,hypo is going to be tuff to do,so go with a copper treatment.
Copper may raise some shouts of protest from people,but your main goal is to insure the crypto infection does not transfer to the new system.I played this similar game a few years ago,and you know have the chance to have a pararsite free tank!Aint nothing better in the world!

[discusone]

Hey,forgot to add,not knowing what your substrate is,you may need to remove it from the tank containing the fish.Crushed coral and the like can pull copper from the water,and affect the theroputic levels needed to combat crypto.

[Humongous]

Thanks for the advice. I'm going to to start the transfer tonight and then begin lowering the salinity for hypo.