To start off I go to petco pretty frequently for fish supplies and stuff for new tanks. One of these times I bought some aquatic wood (to lower my ph) so I got two small pieces. This was my first time buying wood so I wasn't aware of them having to scrub the wood with a brush to clean it of snails and what not. Apparently it was the head of the aquatics department that gave me them! So a few weeks later I found a snail in my tank... most unbought snails are pests and you don't want them in your tank. I have yet to find another one but I'll keep looking. More recently my girlfriend got some plants from the same guy and he took them out placed them right into the bag without washing them or anything. Now my girlfriend has a HUGE snail problem because they're too lazy to get them off much less control them in they're own tank. She got fish the same day and he scooped a whole bunch out of the tank and she only needed three. He starts picking the fish out of the net with HIS HAND!!! I don't know how stupid these people are but touching any fish with your hand takes the slime coat off them which basically allows them to be susceptible to diseases and parasites that their coat would normally keep out. He continues to do that with five different fish then put the three in the bag that she wanted with his hand. So if you don't want snails or fish that could possible get very sick, then don't shop here because the staff and the "head" of the aquatics department are dumbasses and can't open a book or even look up the basics of fish keeping.