that is a peacock...O. Scyllarus, in my opinion the most aggressive of the mantis shrimp, one of the largest smashers, and has the ability to crack and shatter probably up to 1/4" thick glass if it is really upset, i have personally seen the aggression in mine probably go up ten-fold in the past couple of days for some reason, i have seen mine split fish in two with a few strikes, she has also been on a constant construction mode and has decided to chip off a bunch of 1-3" pieces of LR to use for bricks, they are EXTREMELY active also, mine recently has actively been searching for food and more building materials, inspecting each piece before deciding where to put it and if it is suitable or not, VERY intelligent creatures also, problem solving for them is no problem also very smart hunters, i just love mine it has more personality then any other animal i have owned