Hello! I recently set up a 5-gallon tank for Seagrass I found drifting while on vacation. Since I have the tank setup I decided to make it a mantis shrimp tank, Please leave any recommendations for what mantis shrimp I could keep in a 5 gallon. I will be having about 2 pounds of Florida Live Rock and 1 pound of rock rubble. The sandbed is about 1-2 inches deep and the tank will not run a filter (just a powerhead and weekly water changes).