I'm having another issue with my bettas
My veiltail started acting kind of funny yesterday, after I did a water change. First, he was having trouble swimming. I thought I may have added the water too fast - I've read that adding the water too fast can cause swim bladder issues.
A couple weeks ago, a black spot showed up on one side of his "nose". I was a bit concerned, but decided to just keep an eye on it. Up until today he was acting normally.
Now, he's pretty pathetic looking, sort of listing on the bottom of the tank.
I also noticed some strange looking scales on one side of his body. They sort of look like they've been scrunched up or something, not sure if that makes sense. I'm almost wondering if he's got some sort of fungus or something, since the "scrunched up" scales look like they've got a lighter colour too.
Black spot on nose: It might be slightly raised up, it's kind of hard to tell.
And the area of scales I'm concerned about (circled)
He wasn't co-operating to get great pics though...
He's still responsive, and was even following my finger back and forth.
Now, this may or may not be related to the swim bladder problems I've been having with 2 of my other bettas.
Whether it is or not, I'm concerned about my 2 bettas, who so far seem perfectly healthy.
So first, any ideas what's wrong with this guy, and is it contagious, and is there anything preventative I can do for my healthy bettas.
This guy is in a 2.5g mini bow, has a mini filter attached. I had unplugged the heater (since it's not adjustable, and was getting on the warm side), so the temp was down to about 74*. But I've plugged it back in now, and will keep an eye on the temp.