BB sized clear sacks? For lack of better terms. lol

[dmay2782]

I have been taking some rock of out my tank and when I lift the rocks there are tons of BB sized clear sacks under the rock. When I push on them they kind of pop. Anyone have any ideas?? The rocks are crawling with pods thats the only thing I can think of, pod eggs or something. I dont have any pair of shrimp or anything like that. I do have two clownfish but I dont think they are from them.

 

[aznnutty]

sponges? i have them as well under the rocks i had

 

[chuggy]

def not clowns they lay there eggs all in one bunch and watch over them intently