saltwater puffer fish

Question
hi

ive got a 20 gallon fish tank and i want to put a puffer in it. this will be the only fish. my tank is quite long and it has some live rock.

thanks for taking ur time to answer these questions  

Answer
unfortunately puffers do need quite a bit of room, there are some small wish puffers, the Valentino puffer stays pretty small but would still need more that 20 gals. there are some nice brackish water puffers that i believe do stay small. i don't know much about them though so so try a google search on them.

the figure 8 puffer is a brackish puffer and they are pretty mad little fish