The LFS may be nice, but you will need to go in there doing the homework before, while in the store, or afterwards. It's hard enough buying a known fish and it working out in your tank, let alone someone selling you the wrong one. 6 line, red line may not seem like a big deal, but it can be. I would educate myself before, in or afterwards. Make sure you know what you are getting. Use the liveaquaria site while in the store for research if you feel you must make a purchase. Correcting them, it may or may not be received well. Bottom line, just stay educated on it and verify what they say just to be safe

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