Ok so I sold my other mantis because I want a Peacock. I just finished setting up my 20 gal tank as a saltwater tank. Couple questions, just found out there is a peacock available at my local fish store it's 5 inchs. I wanted a smaller mantis but if this guy is not gonna smoke my glass I wouldn't mind getting him. Is it common for peacocks to attack glass. My other mantis didn't ever bother but I know peacocks get fairly large and can do some damage. I only want to hear for people that experienced peacock mantis shrimps first hand.