Mine are only about 3-4 inches and nowhere near that tall. To be honest I'd tell anybody that wanted to buy some not to. If people would stop buying them maybe they'd stop breeding the poor deformed things. They can't eat pellets because their mouths are too low and deformed, they barely eat flakes but only if there's a big piece they can take a bite off of. Watching them try to eat is like a lesson in how to torture a fish. Mine are not as shy as they were when I first rescued them but sudden movements, loud music..anything out of the norm makes them hyper. I guess the hybrid breeds are ok it they're not deformed like this, why anybody would do this to a animal is beyond me. Others might disagree with me but I strongly believe this is wrong. If it was my friend I'd try to talk her into a mild mannered colorful fish, discus if she wants to go to the trouble, golden sevs are beautiful, Jewels are beautiful and don't get very big. I'll stop ranting now