Now that I have two I have been reading up a lot on them. I've found the general consensus is that they don't have a problem with any tank mate in general, well except inverts which are food.
"If one enjoys their swimming style, body shape, and curiosity, but
wants tank mates, then go for the Tetradoan S....... (darn!, I can't remember
the name, it is like Sartogous or some such. It is a totally fresh water
type which enjoys all tank mates *EXCEPT* other puffers; if you really want
the name, mail me and I'll look it up for you). "
Quoted from:
http/www.thekrib.com/Fish/puffer.html
Out of over 30 sites I have searched close to 85% say this same basic thing that they are a fairly docile puffer except in relation to other puffers. Although mine seem to get along. Actually carousing the same side of the tank together and not being agressive.
"If one enjoys their swimming style, body shape, and curiosity, but
wants tank mates, then go for the Tetradoan S....... (darn!, I can't remember
the name, it is like Sartogous or some such. It is a totally fresh water
type which enjoys all tank mates *EXCEPT* other puffers; if you really want
the name, mail me and I'll look it up for you). "
Quoted from:
http/www.thekrib.com/Fish/puffer.html
Out of over 30 sites I have searched close to 85% say this same basic thing that they are a fairly docile puffer except in relation to other puffers. Although mine seem to get along. Actually carousing the same side of the tank together and not being agressive.