What In The World Is Wrong With My Molly?

[teanuhh]

I'm on day 3 of doing an ich treatment. My molly was the one that had it on her, but after the first day of treatment the cysts were gone and she was back to normal. Today I was planning on vacuuming my gravel again but when I went to start, I noticed that I didn't see the molly. After a few seconds of looking, I found her laying on the ground, not moving, behind all the plants. I reached the net in to move the plant to see if she was alive and she scurried out. She went back to swimming around like normal, but every once in awhile when she's just floating there, she will start to float nose up tail down. I also saw her swim into the corner and when she tried to turn around, she went like, upside down and then kinda spazzes like she's having a mini seizure and turns back to the corner. She repeated that a few times. Does this sound like anything? It was so weird.

She's swimming around now, not as active and excitedly as usual, but she isn't doing anything too weird. I tested my water quality yesterday and everything was fine but slightly hard water. My water is always somewhat hard, though. I don't think I can really do anything about it. We have crappy water.

 

[moollies]

I am having same issue. I am researching what this symptom is, but nothing comes up so far.
I have mollies. Normally, they look normal, they eat well, and they swim normally, but they constantly float vertically( always head up and tale down)and have like siezure for a second, then swim back normal.
Now it seems like this has spread out to other mollies. It has been seven days i first noticed.I medicated with Quick care, but did not stop this symptom. I have changed water constantly, but did not work. Now I am medicating with anti- bacterial medication, but it seems like not working at all.
This symptom occurs only to mollies. My other Corydoras are fine.
can someone figure out what is happening???