Originally Posted by NEWBEE FISH
i just recently got a betta fish that i won for my daughter at the county fair and i fell in love with the fish... i just recently upgrade the fish from the ( i think was a 1/2 gallon tank to a 5 gallon tank) i notice a gap on its top fin and some gaps on it fin too.. how do i know if fin rot and what can i do to contain it??? ANY HELP WILL HELP...
Fin rot appears brown on the edge of the fins/tail. Worse stages look like the tails bloody.
Was he with any plants other fish? if not he might have just bitten his tail.
Pictures would deffinatley help us to help you.
Is the tank filtered and heated? (warm water aids recovery with tails,)
Bettas are tropical fish and need to be heated