Female Rainbow Fish Mystery Illness

HI guys. Been having an issue with my female rainbow fish. She has been sick for months. Treated with Furan 2 and tetra life guard at different times. She had constant fast breathing fin rot and swimming head up. Not any better after weeks of treatment. I have a video of her but it's too big to upload on here. How can I post my video for some input. I'm ready to put her out of my misery. Clueless here.

 

Greetings and welcome to Fishlore!
Upload the video to youtube and then link it here.

We need more information though if we are to hazard a guess as to what is going on.
What size tank?
Specs? Temp, pH, ammonia, nitrites, nitrates (when was last test performed) and kH, gH and TDS are great too if you have them.
Filter size?
Substrate?
Plants?
Tank mates?
Any other rainbowfish in the tank?
When was stock last added to tank?

 

Well she started in a 55 gal planted aquarium. I had not been quarantining (bad mistake) over the past year I have lost several rainbows ALL of my platys/Molly's. 7 total . 3 Bolivian rams.3 Cory's dead.
Ph 7.4 ammonia 0. nitrates nitrates 0
Don't have gh test kit. I do water changes every week 50 %. Many of my fish had the spine bending downward, darkening of body. Sounds like fish tb. Filter is a 305 fluval I rinse every couple months.

She is now in a ten gal for medication. Ammonia is on the second reading on the apI master test kit .25ppm. I assume because of the antibiotics. But I use seachem prime.I assume it's not toxic and I do daily or every other day 50% water changes. Video uploading......

 

Oh my, that looks a lot like fish TB to me. Sadly treatment is rarely successful if that is the case. Treatment is usually several courses of kanamycin.
Furan 2 contains nitrofurazone, not kanamycin. It is ineffective against fish TB.

That being said, if ine fish had fish TB they likely all do if they shared a tank. The bacteria that causes it can live in a tank for months. You can try treating the whole main tank with kanamycin as well. Many people find that the inly way to truly be rid of it is a whole tank wipe. After all the stick dies the tank is drained, broken down, the plants are either tossed or sterilezed in bleach dips, the substrate is usually tossed and new stuff used. The filter media is tossed and new stuff used and the tank, decorations and anything else that touched the tank is thuroughly cleansed and sanitized then left to dry before starting over from square one. Which stinks. I know. But sometimes even treating with kanamycin can't get rid of it and adding new fish to the tank will just keep adding more victims for it.

 

Well that sucks.... I don't have the money for all that throwing out of everything. If I do the med u mentioned.... how do I preserve my nitifying bacteria? The furan 2 and life guard already wrecked my little tank.

This is her mate. Still in the 55gal.
Do you know is that ulcer fish TB also?
He is healthy looking accept for that score. And it's been there for a long time.

 

All that should be tossed is substrate and filter media. The rest can be sterilized. A bag of black diamond blasting sand, which is what I use for substrate, is 8 bucks for a 50 lb bag. Its not much to buy a bag of filter floss and you can also pick up ceramicc rings by the poubd or sponges or whatever else you use off amazon and ebay for quite cheap.

Fish Tuberculosis
Fish Tuberculosis

 

Thank you 4 the info, and your time