Here's some backstory:
I bought Harlot on July 12th from Petco, where he was very poorly handled; his fins were short and raggedy and he was very unhealthy. I began a five-day salt treatment that ended on July 17th in order to help his fins grow. And it worked marvelously!
(this was the day his treatments ended.)
Since then his fins have grown and grown with rapid speed, and he has been a very happy, spoiled boy! He likes to play with a ping-pong ball and follow my finger around, and he's got quite a bit of sass nowadays. I was amazed with his progress!
Now some stats:
- 1-gal plastic tank (all my university will allow)
- marble "gravel"
- two silk plants
- every 2-3 day water change (50%, 75%, or 100%) with conditioner
- last water change was 3 days ago, 100% change
Yesterday morning I found him tangled in one of his silk plants; he had somehow managed to get himself caught in it, and was writhing to get out... so I lifted the plant gently up and he shot out. He looked none worse for the wear, just a little scatterbrained. His fins were fine. I took that plant out this morning, just in case.
THIS morning I woke up, and to my horror, found this:
(he had actually drastically progressed since this outdated picture)
What on EARTH happened??!!
The pictures did not come out well and do not show the majority of the damage, but they do show major tearing on his caudal fin. However, irl, just looking at him right now, he looks like a ragdoll! He was also especially antsy, almost traumatized this morning. It can't be the filter... the pull isn't strong enough! And are no fin remnants on the tank flooring or anywhere.
I looked up fin diseases. I suppose it could be fin rot, but he is so well taken care of, and how could he go from glorious babe-killer one night to raggedy andy the next morning?! I mean, the change is drastic.
There IS transparent growth at the end of his caudal fin, so that's good. No bleeding, no blacks spots, no white spots, just giant rips. If I were to try another 5-day salt treatment, would it be too soon? Help! I don't know what to do to help him!
Any advice would be appreciated!
EDIT: I checked water levels this morning. Nothing was out of the ordinary except that his pH had shot down from 7.5 three days prior to 6.8.