I think you're right, it most have been due to the cold water. I've been to that store MANY times, the owner is a friend of mine and he knows a lot about fish, he's veterinarian. But, the place is pretty cold, and these little two were beside his computer (it's the warmest place there, :S) so I'm sure the weather really affected them. But, I finally have peace of mind because I saw Delta eat FINALLY!! I'm so happy about that!! He ate 3 brine shrimps, but it cost him a little effort. He doesn't want to chase them and I noticed that turning around is complicated for him. :( I hope that now that he is getting his appetite back he'll be OK soon.
Bettas are hardy fish...but if kept in poor conditions long enough and they can be severely effected. Its a good thing you brought him home!
That's great!! Sounds likes his on his way to recovery :) Just keep at it, and soon he'll be all better.
Just a little update on my little one. He's getting really better! He has a very big appetite, I'm giving him brine shrimps two times a day, he loves them. Still, I noticed something in his anal fin. When I brought him home hi had this tiny little red dot on the edge of his fin. But, today I saw that some more of this tiny dots appeared. What could it be? Did he hurt himself? It's really bright red, so, I don't know if it could be fin rot. Here are some pictures.
Aww, what a cutie!! What color is he? Its a bit hard to tell xD
Yup, that's finrot though...again, something clean, warm water and salt should be able to knock out. If after a while of the salt treatment(oh, I'd say a week or so...)it appears to be getting progressively worse, then you might want to look into medication...but for now just concentrate on keeping his hospital bowl warm, clean, and salted ;)
How big is that bowl though? O.o It looks less then a gallon to me...
Also might want to put something on top of that bowl...bettas tend to like to jump ;)
Ooh! Thanks! I also think he's a gorgeous little man! He's still young, about 4 months... I can't wait to see his beautiful caudal when he's older! I really don't know what color he is! He's like a metallic white... something silver... with gold on many of his fins. I'm afraid the picture doesn't show it very well. I'll try to make some more pictures! And yeah... I know the bowl is small... maybe even too small for a hospital, hehe. But, that's the one I had home. Don't panic, he'll be soon living in his 2.5 filtered, heated tank! He was there when I brought him home... but, I decided it was better for him to be in a smaller maybe more comfortable place till he recovers. I'm doing daily water changes and the bowl is at a constant 27 C. Here's a picture of his future wife (in December I'm planing to breed this two, wii).