Is this moss ball normal?

[Ashf]

I bought a moss ball from petsmart in those little grab and go containers by the bettas. It was (to my knowledge) never kept with other fish. It's been in quarantine for 3 days now, and I picked it up to look at it, and I noticed there are some little yellow blob thingies on the outside of the moss ball... I'm not sure if this is a part of the moss ball or something else? Thanks!

https://imgur.com/a/UVUqd7J

 

[Hayleyy]

What is the texture of the blob? Could it be some kind of substrate, like gravel, from before it was packed?

 

[Ashf]

It's hard, but see through and clear/yellowy. Now that you mention it, it definitely seems like some sort of substrate! Thanks!
Another question, how long should you quarantine the moss ball, since it was alone?

 

[Hayleyy]

Glad that is all it is! I would quarantine for a week or two. I would usually do a week unless it was kept with fish