my petco actually sells a few interesting fish,such as snowflake eels and volitians lionfish.They also sell clown knives and can order ropefish.Occasionaly they get ornates too.Actually quite knowledgeable to be honest,and I do shop their for suppiles.Around my area,most of the chain stores seem to be knowledgeable,afore mentioned.And I can get artificial 3-D rock backgrounds for a cheap price,not to mention with a card for something even CHEAPER.I'm pretty sure I can name all of their fish and reptile species.I really only go to 3 places(petco,petland,wallys)for my fish.Yes,I buy from corporate stores.And the petland sells bamboo sharks,which actually look healthy.And theres a 2 of wal-marts around here,yet only 1 sells fish,and unfortunatley sells retics(only $10 though),and chinese water dragons.Though some of the staff is good.