2 plecos. Man someone really needs to put a stop to this. Plecos will grow to 18-20 inches in a several years. My sister has a 8 inch common that is 2 1/2 years old. she keeps him in a ten gallon and is about to set up a 55 gallon for him. It seems like it is a common practice for LFS to listen very carefully to what size tank you have and what you want to do with it. Then they tell you to buy 2 Edit
![Frown :( :(](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
i'm referring to my experience with rainbow sharks right here btw didn't want you to think i was talking about plecos) fish that need to be in groups of six (but should be kept alone) and grow to 6 inches a piece, and will kill each other if left in pairs. My theory is that they want to force you into
A.buying a bigger tank(caching)
B.bringing the fish back for store credit(caching)
C.all your fish die because no one told you what ammonia is and you come back and buy more(caching caching caching)
If anyone wants to elaborate on this it would make for an interesting thread.
Basically you have three options. You have 2 common plecos correct. You can either go buy a 55+gallon(probably a lot bigger for 2 commons) tank. or you can find a friend or aquantance with an extremely large tank and hope that they will take them off your hands. or CALL THE BETTER BUSINESS BUREAU and the SPCA and any other animal or businiss organization you can find in your area and tell them what your LFS did to make a buck. Or you could take the easy way out and go into your LFS and tell them that if they don't take back your pleco's you will call all these places, betcha they take em back (ask to talk to the manager)
I'm really sorry this happened to you but don't feel too bad it happened to me too. What your LFS did to your fish is cruelty to animals simple as that. Two 20 inch fish in a twelve gallon tank is simply inhumane. It should most certainly be illegal for an LFS to mislead a customer if it could lead to the death of a fish, and I can almost assure you that if you keep two commons in a 12 gallon they will die in a couple years, maybe sooner depending on how big they are now.
I am really not trying to hurt your feelings i'm just telling you what i was told when I came on here.
I'm really sorry this has happened (again), and it wasn't your fault you should be able to trust the people at the lfs. If the pleco's are very small and all the other fish are very small you may have some time to decide what you want to do but if you want to get the lfs to take them back then the sooner the better.
EDIT: I just noticed you have a question mark beside common pleco and in your first post you say you only have one but in your second post you say that you have 2. You should try to clarify as there is a big difference between pleco's