switching tanks and i have ick!
 

i am aware that i have ick in my tank and all my fish died except for all my emerald crabs and snails ans a feather duster. I bought a new tank and was wondering if its ohk to but my live rock from the tank that has ick in it to my new one along with my creaters?

Yes, but leave it fallow (without fish) for 10 weeks before adding any fish.

If the fish loss happened quickly, it may have been velvet, not ich. You'll need to leave the new tank fishless for 8-10 weeks, or the parasites will be back. Forms of the parasite are defiantly alive in the LR. The inverts are OK to keep, they can't feed either parasite. Also, get a QT set up and use it on all new fish or you'll go through this again. I'd read the ich stickies at the top of this forum section; knowledge of the ich life-cycle is vital info.

thanks but thats happened in my gf's tanks, trying to help her, couple questions- what is velvet? and yea she had a flame angel, copperband, coral beauty, twp clowns, dispar anthis, bi color angel, naso tang, and a couple others and they all just started dying very rapidly for some reason, thought the cause was the coral beauty bc it had white spots all over it.

Velvet (oodinium) is a fast acting, very contagious & deadly parasite. Its often confused with ich and is a main reason to quarantine new fish. Google "marine velvet" and 'marine ich"; including images, and what you had.