Ich? But not Ich...?

So as of late, I've been doing a lot of reading on differences between Ich and Epistylis. I think I understand that Epistylis is the deadly one of the two. But Ich can kill due secondary infections. If my understanding is correct. And I need some help racking some brains for what is going with a guppy in QT.

So about a week and a half after buying two female guppies, a female platy, and three SAES, and a round of antiparasitic, I was about to move everyone to their semi permanent residences, I noticed some white spots on one of the guppies tails. Great well, I know I needed to treat for Ich and I salted the tank and let it go for two weeks. Long story short, Ich seems to disappear briefly and then it comes back. Great, salt resistant Ich whatever. So I do a water change and use Rid-Ich Plus.

It's been three days and some, and I'm not seeing a difference. Plus the weird thing through this entire time, is that the Ich hasn't moved to the other fish in the tank. The dots are still on her tail, they don't seem to be sticking out, the guppy in question is eating and really active. To my understanding if she would have had Epistylis she would be dead by now. I don't want to risk my other fish in the permanent residences... So any suggestions?

Sorry for the blurry pictures, she won't stay still...

 

Is it just because she’s moving or are those lines not dots?

 

She is moving and they are dots, but you also can easily see the rays in her tail. She is sort of transparent also, which doesn't help.

 

I can't confirm that it's Ich but it does look like it on the one non blurred photo.

According to the directions Rid Ich Plus requires dosing at least daily. Have you been doing that? Also it can take a few days for the Ich spots to fall off and to see results. The meds only kill the newly hatched Ich in the water column. I'd continue to treat according to the directions and monitor what happens.

 

I can't confirm that it's Ich but it does look like it on the one non blurred photo.

According to the directions Rid Ich Plus requires dosing at least daily. Have you been doing that? Also it can take a few days for the Ich spots to fall off and to see results. The meds only kill the newly hatched Ich in the water column. I'd continue to treat according to the directions and monitor what happens.

Yes, this is the fourth day. Given that more dots have shown up on the guppy, that has me confused, that and only one fish out of the batch has those dots.... Which is unlike Ich in my experience.