Me too, I once heard the guy at my lfs telling this woman she would only need to do a water change every 2 months and it was quite a small tank about 2.5g, and I don't think she knew about cycling the tank either because she went and bought the tank and a few fish on the same day. I don't know what the man was tlking about. I never take the advise from the people at the fish stores. They don't know much about fish if you ask me!! It's all a load of rubbish! >
Betattack, I have learned long ago not to trust fish store people - most of the time and most of them know NOTHING, though they pretend to know "everything" about fish-keeping. I have still much to learn but thanks to this website and aquarium books as well as the Internet I now know much more than I knew before. So now no fish store seller will ever again lie to me, or talk me into buying something I don't even need. And now I use my knowledge to actually test fish store sellers - it's sometimes disturbing to hear the kinds of advice they give because I am able to distinguish good from bad advice.
Heh, they don't always know what they're doing. I have several stories I could give on that... most recently... the bulb in my 33gal has been flickering. So we went to get a new bulb... the person behind the counter thought we needed a new starter - she knew the exact hood we had, and the bulb. Both were directly behind her and I pointed them out. Lo and behold, not a single starter on the whole thing - the bulb it comes with has it's own starters as a part of it. Not only that, but the starter she sold us didn't even fit where it was supposed to.
Don't worry about that! Some people really know what they're doing. There are three petstores near me (out of about 14) that know what they're doing. Almost the entire staff knows at least enough to tell you whether or not you're doing something wrong. Heck, I know of at least one person in each of those stores who knows more about fish than most of us here. There ARE some good people working at pet shops