Hi there, I just moved into my own apartment and brought all my fish with me.
I have a 5 gallon divided tank with 2 bettas. One is a CT and the other is a VT. My crowntail wasn't showing any signs of fin rot at all before we left. His fins were long and beautiful with no tears at all.
Now that we're all settled in our apartment, I realized that he has a big ol rip down the middle of his tail and the fringies around the rip are fraying. He looks like someone pulled them off, but there there also looks like a needle prick hole around the area too. He doesn't sit still so I can, in no way, get a picture. He still flares, still swims EVERYWHERE, still is really active, loves to eat bloodworms from my hand, loves to beg, is still his usual self, he just has that tear and breakage. He also hasn't faded or anything. I'm not sure if it could be finrot or just a tear. Can the temperature affect their fins? I know they are sensitive to temperature. I accidentally left my second 100w heater at home so I won't be able to get that for another week. Their temp is staying within 75-77, I know, that is low, but I really can't do anything about it right this second. The water quality in my tank is:
pH: I think about a 7.8, maybe 8 (test kit colors all look the same) Is this too high?
Amm: .15ppm I know, it should be zero, and it was before we moved. I took the way more than half of their original water with me, so I only did about a 45% water change when we moved.
Nitrite: .15ppm Again, I know, it should be zero, I'm only wondering if this could cause one betta to have problems and not the other.
Nitrate: 5.0 ppm
I think it might be my water quality. I will preform a water change today and see what happens. They have a little bit of everything in their tank so I'm assuming its trying to finish up the cycle and I interrupted it by moving and stressed Bleu out.
I have a filter on the tank set to the lowest setting. The water I use IS city water but I add API's Stress Coat water conditioner. I add aquarium salt every once in a while.
I would love it if someone could give me their advice and what they think could be going on.