I have 5 gallon with just cherry shrimp and 5 baby (maybe a month old) mystery snails in it. I woke up to what appears to be newly born snails and these little pods all over the tank. You can see the “newborns” below the pod on the glass. Are these snails, or shrimp or something else? They are so tiny that even when I zoom in I’m not positive. A couple of them resemble snails but I don’t have any mature snails in that tank so I don’t understand what I’ve got going on? Thanks so much in advance.