hydrocotyle tripartita 'japan'

Is something eating my plant? I just got it a week ago. In this tank, I have a small colony of red rili shrimp, 1 mystery snail, 1 nerite snail, and I have some hitchhikers - what I believe are tiny ramshorn snails, detritus worms, and copepods. I've seen the little snails and shrimp on the...