I have a group of first time breeders in a colony of 1.4. They had a litter of 7 pups a couple weeks ago (the first litter from any in this group) and none survived more than a couple days. I was saddened but not overly concerned as this was the first litter from any of these females.

Unfortunately another litter was born 5 days ago and none of them lasted 3 days either. I was finding dead pinks all over the tank for 2 days.

I can understand the first litter...but not a single survivor in 2 litters?

They are in a 20L so they have tons of floor space. They have 2 wheels and they get PLENTY of exercise. they have a hide that they will all pile into from time to time (though the male tends to hang out under the water bottle more than pile in with the girls). I feed Mazuri 6F so they have good food and I supplement with natural sunflower seeds and the occasional apple slice.

Any suggestions? I don't know what's going on but I informed this group that should the next litter have no survivors the entire colony would be slowly turned into snake poo.