Welcome hamburgler. I wish there were more people like you at the pet stores I've visited! Good for you to take the time to be helpful and knowledgable about what your selling! The time you've taken to research and learn about fish will be a real help to all aquarium keepers both new and old! So, do you have any reptiles at present? I love my fish but my 15 year old son has a bearded dragon. I almost didn't let him get it, but 3 years later I'm glad I did. She was just a baby when we got her but she is now a 1 1/2 ft. long spoiled baby!! Any plans to start your own fish aquarium?