[What is this in my Shrimp Tank??]

Hey Scottie , I think you are correct. I have noticed more and more of them every night in my shrimp only tank  I keep the water level high so she has no place to lay. I noticed her last night with some eggs still hanging out of her. The fish must eat them in my other tanks because I’ve never noticed them before. 
 

Thanks 

[What is this in my Shrimp Tank??]

I found a bunch of these in my shrimp tank yesterday. There is some up high on top of the wood and then mostly down low on my rock cave and substrate. Also see some in the sponge filter 

 

There are 5 Red Riley Shrimp and 2 large mystery snails in 15 tall. 
ph 7.4

ammona 0 

nitrite 0 

nitrate 10ppm

KH 4

GH 9