

I have barely seen my loach since his counterpart died (he's hiding a lot), and his behavior is now very different. I'm 99% sure that it was my remaining yoyo loach that did it, I can't think of any other fish in there that would. Here are the videos I took of the injuries: I also wanted to put him in the net to protect him possibly from the culprit. He was also acting normally so I am hoping he pulls through.

I fed him fluval bug bites and he ate normally. I had treated a bad case of dropsy like this before and forcing the betta to rest in the net worked wonders. I then put my betta in a net near the surface of the water in the tank and that was held in place by the lid overnight. I treated the tank with Melafix, Fritz Indian Almond Leaf extract, and aquarium salt. I was shocked and so scared, because this tank has been in perfect harmony and everyone has always gotten along. Moving on to last night, during feeding I noticed my betta's face seemed swollen, and upon further investigation I discovered that the left side of his face had been injured, with a couple of red open wounds and the scales on that side of his face pineconing.

You can check out the thread here for context on how I got the 2 yoyos and lost the 1, and you can check out my thread here for context on my dilemma with my remaining yoyo loach. I have a giant male plakat betta, various platies and guppies, synodontis petricola catfish and a few mismatched species that were combined from old community tanks and their schools not replaced (I'm trying to let them die out naturally) such as chili rasboras, hasbrosas pygmy corydoras, and a salt and pepper cory, and of course now only 1 yoyo loach. The short story is I had a pair of yoyo loaches in my tropical community tanks for over 4 years, and this tank has been running in perfect balance and harmony for over a year. Hi everyone, I've got a sad and frustrating problem on my hands.
