Gregory's tail has been taking quite a beating lately. I have no idea why. I've inspected the plant, I've inspected the pot in his tank, and I've inspected his car. They all seem fine.
I started out as a little hole, but now its turned into this, about four days later. Normally, I'd just start treatment at this point, but this is the weird part. I've already been treating him and protecting his tail using aquarium salt for the past three days. If it was fin rot, I wanted to catch it and in the early stages. It has gotten worse since I began treating him. So I'm wondering... is this fin rot, or is there something else that could do this?
I apologize for the quality of the photo. I had to take it on my phone, and he just wouldn't stay still. I resized it so its not so blurry.
I haven't ruled out biting yet, but I haven't ever seen him do it, so I think its unlikely.
I'm currently treating for fin rot with Aquarium Pharmaceuticals Triple Sulfa Anti-Bacterial Fish Medication, and am on the third day of medication now. Gregory is in a 10 gallon tank by himself, and since my heater still hasn't come in, his temperature is sitting at 70 degrees F. I've been using aquarium salt for the past two nights. I change his water (10%-15%) twice a day, everyday, but since beginning the medication, I've slowed my water changes to once (25%) a day. Ammonia: .1 ppm Nitrite: .1 ppm. I'm not sure of the pH of the water, or the hardness of the water off hand, but I do know that the water in my city is on the hard side.