It would be extremly rare that a puffers teeth over grow it's mouth to the point where the can't eat. I have read about it and heard about it but in pushing 20 years of dealing with fresh and salt water puffers, I have never witnessed it. I have my doubt to weather or not it can even happen. As much as they "test taste" everything including gravel and decorations, thier teeth should be fine.
I'm not very experienced with figure 8 puffers, I've had them to sell to people at the shop but I never had one personally long term. They don't seem to be as mean as some of the other puffers are. I'm sure many here have had them long enough to give some advise on tank mates for one (Jen's suggestion for example).
Also, what it was that killed your puffer is a great question. YOu may want to do a little investigation before getting new fish if you haven't all ready. (water quality for example)
I'm not very experienced with figure 8 puffers, I've had them to sell to people at the shop but I never had one personally long term. They don't seem to be as mean as some of the other puffers are. I'm sure many here have had them long enough to give some advise on tank mates for one (Jen's suggestion for example).
Also, what it was that killed your puffer is a great question. YOu may want to do a little investigation before getting new fish if you haven't all ready. (water quality for example)
) even the C. asellus, who in general are usually only fin nippers, will actively hunt any fry or tiny fish that I have tried to keep with them....they seem to get on with Skunk botia pretty well....but the Botias are little knobs in their own right. 