Parasite control question..

[fishman]

I am thinking of adding corals and even a clam to my tank in the near future. I have batteled ick for the past 8 weeks and gone through the QT tank with my fish and left the main fallow for 8 weeks as well.
My question is to avoid introducing ick and other parasites to my tank again, what do you guys do to make sure nothing slips in...and I speak of corals and such. I have heard most corals you can do a quick fresh water dip and then drop them into the main...But say on a claim, what can I do to prevent disease that might be in the water from the LFS or even on the claim itself?
Thanks

 

[quarryshark]

Mainly, make sure they come from tanks that are fishless. Thats your best bet.
Or qt them if they come from a system that houses potential hosts (fish).

 

[Jonathan G.]

my lfs keeps a school of green chromis and a few other damsels in his frag tank but they have been in there since they were tiny.

 

[RMPD109]

Check the filtering system. Some LFS have multiple tanks on a single filter setup. New fish into a tank that is 2 tanks away can infect the corals in the frag tank if they share filtering system.