My beautiful and huge red betta is dying. He just has no strength left and is very old. I took him out of his tank and set up a small two gallon with very shallow water (about three inches) for him. He just lays on the bottem. He'll swim up to grab some food but sinks right back down. He has really frilly fins and they are kind of pulling him on his side when he lays on the bottem. He was starting to become less and less active over the last few weeks. He used to live in my salon and I got to watch him all day at work. He was constantly moving around. Lately he's just been laying on the bottem unless there was food to be had. Now, today he was so tired by the time he got to the surface for the food he sank before he was able to get any (that is why I moved him).
He's still managing to eat but I feel bad for him. He is swiming around on the bottem of his new tank now but still only a very little bit. Do you think that I should euthanize him or leave him go for a bit?