This is my first time posting on this form and would like to say there is a lot of great information so thank you all.

I came back from vacation today and was gone for a week and now all the fish have this coating on them and not sure if its Ick or something else. Before I left I had a coral beauty that i recently purchased die out all of a sudden. I'm sure its what ever that fish had.

I Need some help identifying what my other fish might have and how you would recommend treating it. I Do have crabs and snails but I can put the fish in a hospital tank.
h ttp://i46.photobucket.com/albums/f136/Conceptvip/tang.jpg
h ttp://i46.photobucket.com/albums/f136/Conceptvip/IMG_4549.jpg

Its hard to tell.. your tang does look like it has ick but the other one just looks like it has some other fungal or bacterial infection. You should quarantine them asap though.

was someone feeding them for you while you were away? Have you done water tests?

Yes had the neighbor kids feeding them and all the normal stuff I would do.

The fish are now in a hospital tank and I started them on Coppersafe and seems to be working well. How would I go about making the main tank ick free with out draining the water and such because the crabs and snails are in there?

all you can do for the main tank is to take all the fish out for 5-6 weeks until the ick dies out. It needs a host (a fish) to keep reproducing so if there isnt one, then it will eventually die. BUT you need to make sure you go for that length of time or it will just come back.

Often when someone else is looking after the tank they will tend to overfeed. Overfeeding can cause ammonia problems which may not kill the fish but will make them weak and prone to infection.

Good news is that ich doesn't live on crabs or snails so like mentioned if you leave the fish out of the tank for long enough the ich will die out on it's own.

This almost looks like Marine Velvet more than Saltwater Ich. Treatment is essentially the same, but outlooks are worse than with Ich. Repeated dips in freshwater usually dosed with methylene blue and formalin, or malachite green and formalin is necessary. Copper treatment for 3-5 weeks is another option. Finally, something rather new, is treating with Aralen, chloroquin. The same stuff given to humans for malaria (I spent a few years in the middle east). I suspect velvet because in the pictures it looks to be much finer than Ich. Most people don't even realize there is a difference. I didn't until I read up on it. Read up on how to properly give a freshwater bath, 15 minutes is a minimum, 30 minutes is optimum. That is supposed to show immediate results. You'll want to do copper treatment anyway, and do it right. Copper levels below .18mg/L do nothing against Marine Velvet. You may have to treat the fish with antibiotics after the copper treatment, as copper in high doses can damage fish's gills.

Good luck and keep us updated!