I got 12 new guppies to restock an empty 24gal aquarium from both Petsmart and Petco.
While in the 10gal receiving tank I ran one full application of Paracleanse and had just started a round of Ich - X (I didn't know I could apply them all together at the same time...) when two of the males began having a hard time swimming, and one of the females began to get a white patch on her back (Pics). I went to start a treatment of Maracyn, but realized I bought Maracyn Two instead of the regular. I ordered it promptly but all three died the following day, and a second female got the white patch.
This last Thursday I started treating them with salt, at 1Tbsp per 2 gal of water. This seemed to clear up the white patches, but the guppies still got lethargic and died...
As of today, 3/13 I only have two guppies left and the Maracyn just came in.
Is it ok to add Maracyn during salt treatments? Or do I need to start water changes?
What else could be affecting these guppies?
Thank you!