well, unfortunaltely the stocking is not good advice, but many people think you can stock a sw tank heavily, and the fish only grow to the size of the tank, neither is true, but sending them a letter would only make them think you are goofy, b/c they believe they are right here, maany lfs's do actually believe it, and simply b/c they and others have kept them for more than a couple of weeks like so(but we want years and years0
now the ick thing, if it really were ick(which i don't doubt it was) is definitely a different story, if so, they need ot have their head examined for not even knowing what the devil they were talking about, unfortunately you won't get anywhere, but like said, it may make you feel better, if you do, do so and point out the fact that ick should have been treated with something other than cycle, adn that they should really learn a little about the fish they sell, giving you a clown trigger which gets almost big enough to fill the tank up by itself(and i don't mean load, but volume), jsut to name one, is an improper thing for them to do, no tto mention the other fish like the butterfly, and the angel which really should be put into only mature tanks, i could go on and on, and don't want you to take this as i am trying to telll you you can't do something, but to inform you as to the fact that (as you know) is not really appropriate, especially after you asked them specifically these questions
HTH and good luck