Hi, I'm hoping someone here will be knowledgeable enough to be able to help me with my sick betta.
I have two bettas, bought from Petcetera (yeah, I know their fish suck). I'm a first-time fish owner, but I've done what I can to try to set up and maintain the two little 1/2 gallon tanks.
One of my fish, Lavi, had a bout of what I think was gillworm a couple of weeks ago. His face was all puffed up and he was having trouble breathing. He spent a day or so with his head buried in the rocks at the bottom, and when I realized how weird he looked I went to the store and bought these capsules of parasite controller. It has metronidizole, copper sulfate and trichlorfon in it, and it cured Lavi in a few days, no problem. He's all healthy and happy now, bubbling away.
So when Kanda, my other fish, started showing signs of similar distress, I thought it was the same thing. But I've been dosing him with the same stuff for five days now and he's only getting worse. The symptoms are not exactly the same, though. Here's what he's doing:
He's definitely showing signs of having trouble breathing through his gills. He has now wedged himself in the branches of the little banzai in his tank, so his head is touching the surface. But here's the weird thing - he has to wedge himself like that, because he can't float! The first sign that something was wrong was that he had to struggle, and struggle to swim upwards all the time. When he's not flailing all of his fins, he sinks right to the bottom, and clearly that's very tiring for the poor guy, because he's spent a lot of time just laying at the bottom of the tank, resting. He's very lethargic by now, and is showing disinterest in food, as well.
Does anyone have any idea what this might be - and more importantly, how I treat it before my fish dies? :( Thanks very much for any help you can give.