Time lapse swarm of snails inside fish tank

No audio. Hello this is my video clip, I put two snails into a tank one day and the snails multiplied in hundreds of snails over the course of 2 weeks. I decided to feed them one day so I took a Timelapse and well you could say I have a snail army. You can also see my axolotl that checks in on the snails every once in a while. Thanks, Ace