Superman Rhodactis has white spots?

[Fishguru]

i have a few Superman Rhodacts that are doing really well. All of the sudden in last 3 days a few of them have white spots that form on them or from them, grow for a few hours then release into the water column. They all seem healthy, is this another type of reproductive thing? Guy I got them from had hundreds in his tank but He couldnt answer for sure. Please advise.

 

[griss]

They release the white spots whole or they white spots open and release what’s inside them?

 

[Fishguru]

the whole white spot releases and then looks like it was never there.

 

[griss]

the whole white spot releases and then looks like it was never there.

That’s bizarre. No idea and in over 40 years in the hobby never seen that.

 

[shred5]

That’s bizarre. No idea and in over 40 years in the hobby never seen that.

Same especially since it is not coming out the mouth.