I got these 2 nems a couple of days ago from live aquaria the bright green one his his mouth open a tiny bit and the other one came to me in really bad shape I think it was drying when I got it cause it was deflated mouth wide open. Stuff coming out of the mouth there were particles in the shipping bag and when I put that in both nems together they both looked bad but I took them both out of the water and got new water for them they both perked up I am worried because now they are covers in purplish looking slime I need help and what should I do will update with water parameters the last two pics are what they looked like when they came in




