So I got a new tank around new years day, used bacterial booster and conditioner, plants, rushed things before the cycle was complete really and just got like 9 mollies and a bamboo shrimp. Just added an amano too.

Anyway, snails keep dying. Like they touch my water and it's instant death and I can't figure out why. I have a high GH/KH (I'm from Texas and the wife added a wonder shell randomly so...). I LITERALLY TRIED to give myself pest snails, saw them on my new plant and couldn't get them to live.

Put a nerite and mystery snail in the other day, did great in the fish store water floating at the top of the tank getting acclimated for like 30 mins, got in the new water, shriveled, jerked a bit and stopped moving.

Wife tried to smell them, we waited a day, she said they were hanging out but the smell wasn't there.

Just don't get it. I'm in a newer apartment, city water has about .001ppm copper and I've used less than the recommendation on root tabs. I do have a lot of oxygenation which my mollies love from a bubble bar and another bubbler but the water readings have mostly been good. Is this a TDS issue maybe? I'm so confused.