I tried the pantyhose trap. Basically it seems like it ate through the other end of the panty house. I found it trying to drag yeh shrimp away. I figured out it’s lair at least.
I tried to get some videos/picture but I was too slow and it was too fast. The shrimp was a big shrimp. I wear size XL - L gloves or 8 1/2 in sterile gloves. Below you can see how big the shrimp was. Lair to where the shrimp was placed is about 4 feet away. So it looks like I def underestimated its size.
those suckers are fast. I had one about a foot long. Ate half of a huge toadstool, my entire clean up crew and yellow polyps and stuff I can't remember. I caught it with shrimp in a 2 liter. Put it in a 10 gallon. Terrified my kids friends for several years, lol.