Sorry about the delay, I'm workin a swing shift right now . I'm pretty sure its a Sailfin, but I'm not 100%. I dont have any pictures right now and unfortunately I'm working a graveyard again tonight but I'll try to get one tomorrow.
I was going to take the plecko for him and put it in my tank but i have to many ornaments in my tank that it would likely knock over. My friend just wants the plecko to have a larger home where it will be happier. He would also be open to trading for 2 or 3 smaller pleckos for his 50 gal.
Just a suggestion.
You may want to lower the price as common plecos are notoriously hard to find homes for after they reach 8-10".
Most pet stores neglect to tell people how big they get so there are alot of them out there.
Even for free they can be hard to get rid of.
A good pic will tell if it is actually a common though which will help for sure.