I know this sounds quite cynical, but I don't view anyone as "reliable" personally, especially LFS's; and most people that state they have no Ich in their system just don't know that they do for varying reasons.
I know different people have different opinions on this, but my personal stance is the assumption that everything I purchase has Ich on it in some varying life cycle stage. i.e. I trust no one but myself. I wouldn't even trust a fish coming from Snorvich/Steve, the one person I would be near 100% sure had no Ich within 20 miles of his home :fun2:
If you are serious about having an ich-free environment for life, you will need to remove the Clown and treat/QT and run your DT fallow for the 10 weeks. But if you are willing to wait until 'the time comes' and then treat/QT/fallow, it isn't end of the world given such a small tank. IMO anyway. My personal vote would be for you to just get it right now/early.
I hear what you are saying and believe me if I didn't believe there was a chance that the clown may have Ich I wouldn't be asking the question.
Thanks for the advice guys, I will have a good hard think about what to do, right now it kills me to say this but I think I will put the clown in qt and run the tank fallow, really don't want to though as I'm really enjoying my new hobby, but I am of the opinion the fish are more important then my enjoyment. I'd really hate to get the tank to a level I was happy with and then for everything to be wiped out.
Maybe I'll try and get the qt in a position where I can see it rather than hidden away might lessen the blow a bit besides my cleaner shrimp cracks me up most of the time anyway.