Fin Rot or just munched on?

mikester311

Member
My fiancé's just bought this little lion about a week ago and it's tail and fin towards the back of it's tail seem to be ether chewed on or fin rot. The only other fish in the tank is a little Fiji puffer (blue dot puffer) and there is a small hermit crab and star fish in there. The rest of the fish looks good except for the clear webbing on left fin closer to it's body seems to have holes in it. I circled it in the second picture, but it's kind of hard to see.
Any ideas? Could it be the puffer?
 
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