You really have to talk to the people that run the store to get a good idea how well they know fish or how to take care of fish.. I have two mom and pop stores near me.. One runs pure RO
water in all of his tanks, PH
swing nightmare, and his discus have Hex and the other hasnt cleaned under his UGF
's in what he says 10 years and thinks the things are dream filters! This is the owners by the way, so I dont expect good advise around here from a pet store.. When I lived in OH and northern IN there were some really knowlagable owners, some of wich with masters degees in types of biology, with great stores.. It would have been a blast to have been able to go to Toirtis's store when he had one!!!!!!