mantis shrimp behavior

I have a new 55 Gallon setup and I just purchased three large pieces of live rock (from Florida I think). The second day I saw a Mantis Shrimp and did a big of research and decided to remove it. It ended up swimming around the next day so I caught it in a net and got rid of it. The next day I...

I reworked my mantis tank recently and added lots of new rocks and such so that he would have more room to burrow now that he's growing. I was doing a little aquascaping, bringing small rocks over to cover the pvc pipes I use to support the larger rocks (no mantis smushing please). I looked...