[bulletsworld]

The scientific name for the Dwarf Puffer is Carinotetraodon travancoricus.

They are indeed 100% FW fish but they can tolerate small increases in salinity, converting them into Brackish water.

I never unstood why someone would put a puffer in with a snowflake eel anyway. The lil dwarf puffer is the shape of a goldfish. Of course he's going to get bit! I see it to often that the puffers (both SW & FW) tails get bit off. So sad really.

With treatment options... it really depends how bad the little guy is. Is its tail gone? Is there just fins ripped? Do you have puffer in FW or Brackish? Pic's would help state his position better. Without that info... hard to really give advice. Sometimes just leaving them be is best to see if he can recover.

If its not that bad (Depends on damage) there is a great herbal remedy...
The product is called "Melafix", its a safe all natural anti-bacterial remedy that is safe for puffers. It is is also good for scrapes, wounds and torn fins (great for fin regeneration and less scarring of wounds). Improvements can be seen within a few days of treatment. I was really impressed with this stuff.

Hope this helps.