Yes, I noticed that about their Tadpoles too that and there were some stuck on their filter (don't know if they were dead or not), had a talk to to the lady who got my Taddy's for me, whether they did anything about it, who knows. I plan on going back and checking this wk. One of my G&G taddy's has a bit of a twist in it's back (didn't notice until I got home)...hopefully 'he' turns out OK, we'll see.