Remember to take the price tag barcode thing off the bottom.
I saw mine floating around the tank about a half hour after I put the pot in. heheh. oops. One fish says to another "price check in tank #2" hehe
other than that I just gave my pots a good rinse with warm water. actually I didn't use mine for plants. I smashed out the bottom , so the fish could swim through them. makes good for breeding/qtank hiding places.