OK even though there was like 5 cichlids in one tank and the petco person he accidently scooped up the earth eater how can i stop that and how can i know i was watching him i thought he got the right one i wasnt sure though,, next time ill stand there and point out the exact one
Yes, you watch, and point out the one you want. Also, be very very sure (which can only happen after you do your research) that the one(s) you point out are really what you think they are. I went to a well reputed LFS here, and they had a tank of "rasbora hetermorpha" that was labeled that way, and the employee said were a newly received batch. I asked if he was sure that was what they were, and he assured me that's what they were. Well, since that meant they were charging less than I typically see trigonostigma espei typically go for locally, I jumped on the deal, since that's what those fish really were. Knowing what I wanted (the espeis) as opposed to what was labeled enabled me to spot a bargain.
And yes, I can see how a better man than I would have alerted the staff to their error, but if they don't know what they have, that's *their* lack of education. They probably got the wrong order from their supplier, and just didn't know any better.