Got this guy just a few days ago. I'v attached images but their pretty crappy anyway. He seems active, he eats. His middle and bottom tails look fine, Blue with a clear white finish. But the top one seems to have a bit of red/purple in the white area. He can flare/extend it fully and such but I would rather be sure. I can barely make out the discoloration in these pictures if at all. I'v read about what rot looks like and what it does, if anything this guys seems like a minor case, I just can't tell if thats the way he is supposed to look or not because I'v had him for only 2 days.
Any tips are appreciated.
Also is it dangerous to treat for rot even though it may not be there? I also hear keeping a good temperature helps. I'v got a bettatherm betta bowl heater. Which is meant to keep the temp about 5 degrees above room temp. My rooms usually at a steady 23 deg celsius.