Why is your water so low?
Q
Yep, you've got it. The lowering of the water level encourages the snails to lay the eggs, like mine did, on the side of the tank instead of under the lights where the eggs will eventually dry up from being burned.AWESOME! keep us posted.
the water is low probably to facilitate the snail's egg-laying, since mystery snails require an above-water area to lay their eggs or else the eggs will 'drown'.