Can someone help me figure out what this is?

[jrntx1982]

I woke up this morning to all of these little purple balls in my tank. The tank is not mine but we look after it for long periods of time and I'm still learning. Not sure if these little purple balls are normal.296884

[saltyair]

Looks like a spawning event. Is that an elegance coral? Or a nem?

[Sugar Magnolia]

Yep, the GSP is spawning. Nothing to worry about.