Dark spots on my Spanish Ribbed newt

[Hmm.sd]

Okay so I have 6 Spanish ribbed newts living in a 100 gallon aquarium(4F,2M), and have been keeping this species of newt for about 4 years now. I have noticed recently with one of my younger males that he has these dark spots on his body that almost looks like shed. But when I gently rubbed over them to see if they would come off(I washed my hands don't worry) they didn't. The water parameters are all good and I haven't introduced any plants, fish, or snails into the tank in months. So I was wondering if anyone knew what this is? bad or okay? what causes it ? etc. I haven't seen this before, they does not look like when they normally shed their skin. There has been no changes in behavior or appetite.

 

[Lilibugz]

Hey did you ever figure out what this was? My newts have had spots like this on and off . I’ve never noticed any out of place behavior. They seem pretty healthy and eat well. The spots come and go. I always figured it was from the black sand I keep them on and thought nothing of it but now im not too sure

 

[Hmm.sd]

Hey did you ever figure out what this was? My newts have had spots like this on and off . I’ve never noticed any out of place behavior. They seem pretty healthy and eat well. The spots come and go. I always figured it was from the black sand I keep them on and thought nothing of it but now im not too sure

I never figured it out unfortunately. It went away all on its own. I honestly think it might be their skin getting ready to shed. But mine are still healthy, have great appetite's, and their behavior is normal. So I don’t think it’s anything to worry about.