Please Don't Tell Me It's Fish Tb

This story is a bit long so bear with me:
I have a 38-gallon tank that is cycling with three platys and I think one of them might have fish TB. I used to have another platy who started to get the disease a month ago, but I placed her in a quarantine tank and tried curing her until she eventually passed away. I knew she had it because she became extremely thin, and started to have a curved back. Unfortunately, one of my platys is doing the same. My platy is refusing to eat at all and is starting to become restless in my tank. She doesn't have a curved back yet, but the chances of her not having fish TB aren't looking so well. I will post a photo of how she looks. Although I believe she does have the disease, I am not a 100% sure and I just want to know if there is a slight possibility she may not have it and it could be something else.

 

Other things can cause similar symptoms, so I wouldn't jump immediately to TB.

Can you list your current water parameters (pH, temp, ammonia, nitrites, nitrates)? How often are you doing water changes, and how much are you changing?

 

The ph is 6.8, ammonia levels are 0ppm, nitrate level is 6ppm, and nitrite level is 0ppm.

 

What about water changes?

Platies are hard water fish, and your water may not be hard enough for them, with a low pH. Hard water fish can get sick from soft water. I would try to increase your water hardness to see if that helps. You can add crushed coral or limestone to the tank or filter.

 

Please don't rehome any fish or stick your hand into the tank with cuts on it.
Can you take more picturs or a video?
You can buy solar salt from a grocery store walmart or home depo, for $5 a 40lb bag.

 

Be careful, just in case, but watch it. A lot of things act like tb, and tb imitates a lot of other problems.

Checking your hardness, as TexasDomer wisely suggested, is a start.

No one on this forum watches out for Mycobacter marinum more sharply than I do, because I am one of the unlucky, rare people who have caught it, and in time (lots of time) cured it on myself. I err on the side of caution after that experience.

The photo says maybe, but maybe a few other maladies too. The species says maybe - livebearers are likely candidates. But look up the symptoms of Camallanus, gutworms and especially that water hardness issue. A pH of 6.8 suggests softwater, and in too soft water, platys, swordtails and mollies, all from southern North American hardwater, will develop neurological, kidney and wasting problems that include body twisting.

 

NavigatorBlack id like to hear more about your experience with it, as in how you think you got fish with it, and what you would say is the best way to stop it once it starts. I have a fishroom with 12 tanks of guppies and Fish TB is the only thing that scares me. I never buy a skinny fish and if I see one from the pet store that's a bit skinny I cull it if its not eating. Also, I know that its spread in dirty tanks and thru feces and dead bodies. Aside from proper cleaning tanks and food, removing dead bodies and culling immediately any sick fish I was wondering if there is more we could do or more to look out for. Just thought maybe you had more input than I already know about TB.