I cleaned out a tank of mine recently, and when the water was out I saw something weird on the heater, I thought they were snail eggs. Pulled them off and had a closer look:
So, the lovely Robyn here put it on her hand to see what would happen, they certainly do like to cling on!
Mouthparts
She had it on her hand for probably an hour all up and said she felt a little bit of tingling every now and then, but no visible wound afterward.
We also gave it a squeeze and saw tonnes of little babies coming out of its sides/back. Pretty gross really.
Does anybody know anything about these? I have never seen anything like them in a tank before.