Hitchhiker help

[Untamedrose]

I'm not sure what this is....

To the left of the red sponge the two white patches?? LR came from FL.
anyone know? Cause it is growing.

(if you happen to know anything about the sponge be happy to listen to that too another HK)

 

[Untamedrose]

My guess is some kinds tiny sea squirts.
they are kinda "chambered"
but i'm not sure.

 

[Wiz]

Hard to make out. Looks like eggs or something. Cool sponge! :-D

 

[Salty1962]

Snail eggs? Pic is a little fussy to know for sure.

 

[Untamedrose]

Im going to have to move the rock closer to the wall for a better pic.

But I dont think of snail eggs as growing.... more random? they lay where they lay no? Plus I got my LR and cycled tanks two months old now... snail eggs plus ammonia spike doesnt sound right.
And it was there when it came in so what ever maybe snail wasnt one I added.
this is from may 8th....different angle but

 

[Lionfish Lair]

It's tunicates.