I'm kind of a noob aquarium owner, and only came into contact with this one through inheritance. It's a 55 gallon tank, and I have the pleco sharing it with two mollies, two platies, and two tetras. They all get along fine. I've had the tank for about a month, and I was (apparently wrongly) told that I wouldn't have to change the water in it or anything like that.
But when I came home earlier today, my pleco was laying on his side on the bottom of the tank. Probably the first time I've seen him without his face stuck to the glass. He wasn't moving, but he was still breathing. Probably pretty stupid of me, but I very gently nudged him with the net to see if I could get him to move; it worked. He went kind of berserk and swam away from the net, except his fins didn't look like they were working. They're...like, tucked in against his side, and sort of stiff looking. They're kind of whitish around the edges, and they look smaller than they used to be, like something's eating away at them.
Since then, he moves occasionally, but his fins still don't seem to be working, and he's spending a lot of time laying on his back. I'm not really sure what to do about this. I've tested the
ammonia levels and the
pH balance, and it doesn't seem like there's anything wrong in that regard, but the water's awfully cloudy lately.
Is there any saving him?