I have only saved one fish from this, and treated many. Most people say to flush and sterilize - http://www.bettatalk.com/betta_diseases.htm The one fished I was able to save only lived 3 more months. Prepare yourself for the worst. Bleach everything
I have used Aquarium Phamaceuticals -...
Lot's of great fish everyone! I see there isn't a lot of love for the PK's..
I bred both of these, and this is the offspring: http://s83.photobucket.com/albums/j286/hairechest/?action=view¤t=MVI_0881.flv
Betta get that all the time. The bump on the head could be cancer (sorry, it's possible - I had one male develop it and live a long happy life until it completely covered his head). The hole-in-the-tail I believe is bacterial. Lots of 100% water changes, I still use a drop of Pimafix, salt and...
ICH! No seriously, ICH! Treat with copper or, I use Rid-Ich. Those are the clear bubbles you see on the fins. Full water change in three days, treat again, and repeat - I keep mine in gravel free 1/2 gallon jars with a little salt added until cured. What you are seeing are the cysts that then...
Betta are so unique. Each one is different. Some are affectionate and some are shy. I had one friend who has one who spits gravel at the glass when he wants to be fed (sucker!) They "dance" when hungry, flare when mad and sulk when their water hasn't been cleaned or they are bored.
My longest...
At the very worse case, it can be cancer. I had one fish develop it on his head, he lived at least 6 months before it killed him. Not pretty, but he was a happy fish and never knew he was "different".