Well, I've just put them (Martini and my other gup, Tequila) in the salt bath. I called my LFS and they said to use cooking salt, as it is the purest form, with no additives or preservatives. I put 30 grams in, like you said Porthious.

I also put my spare heater in, so the bucket temp was the same as the tank temp.
Should I only do this once, or repeat it? If so, how often?
EDIT: Sorry, didn't see your post Inchworm.

Yep, Martini definately has fungus: white fuzzy patches on his tail and pectoral fins. And I'm treating Tequila as well, just as a precaution. No, he wasn't injured: the guppy tanks' water at my LFS is a bit

and the gups I bought were the healthiest there. They only started showing signs of sickness a day after I brought them home! I acclimated them properly, but it seems that the stress that comes with being introduced to a new tank caused it.
Thanks everyone: I'll post the results of the salt bath! They seem a lot better!
