I just got the betta I won on aquabid last week. He looks pretty good except that the upper part of his tail fin in a little shreddy looking and the edges of his other fins are curled over a bit. It looks like possible fin rot. Could this be due to stress of travel? He was shipped out Monday but didn't arrive until today (Thursday). Should I try Melafix first (I hate to because I'm allegic to tee tree oil...)or should I give him a dose of erythromycin or should I just wait and see if he heals up on his own? He's in a 10g fully cycled planted tank with a few snails.
Amm 0
Nitrite 0
Nitrate 5
Amm 0
Nitrite 0
Nitrate 5