My little sister's friend got her a betta fish for her birthday and I adopted him because she's ten. He's a male VT, he is being housed in a ten gallon tank, all of his levels are fine (pH, ammonia, etc.), I feed him 2-3 betta bites and a couple of freeze dried blood worms every morning, the temperature of his tank is good, I've added a little extra aquarium salt (5 tsp.), he's got some fake plants to play in, I have a low flow filter installed and I've only had him for 4 days so I haven't changed the water yet.
I notice that his fins looked a little ragged, but it's not red or black like fin rot and they don't look like bite marks. It doens't seem to be getting worse and his behaviour hasn't changed.
Is this somethings I should be concerned about?