Hi. I had two mystery snail egg clutches got within 2 weeks of each other. I used a homemade incubator and the first egg clutch hatched right at 4 weeks on May 20. And the second clutch still has not hatched, and its been a month since then. I put the unhatched clutch on the glass so it would be less dependent on me if the snails hatch. So does anyone know why its not hatching, or if theirs anything I can do for the clutch to help it?