One important thing to know about puffer-fish is that their teeth grow quite rapidly and can get too big if not fed the right diet. If the teeth grow too big the puffer will not be able to eat and will starve. One of their favourite foods in the wild is the snail. The shell of a snail is enough to wear down the puffers teeth as he chomps through it.
The first time I fed him a snail he poked at the end of it and tried to stick his face inside the snails shell through it's hole...not what I was expecting, and not very efficient as far as eating the snail went. The second time I gave him one I broke the shell slightly for him and oriented the hole down into the sand so he had to chew through it. He absolutely loved it and his colour changed to a very brilliant green as he attacked.
I've been a little bit busy setting up my second and third tanks lately. The second is just a small tank for breeding snails and to use as a quarantine tank for any sick fish from the main tank. The new main tank is a 225 litre monster that dominates my living room. I've slowly been planting it with various aquatic plants.....experimenting with them as it cycles. Another week or two and I should be able to start adding fish. Thinking about four or five clown loaches to start, then the hard decision making begins.