Hi Drato11, Thanks for the infor but when I woke up ( at 10 am) I saw this lobster eating one of my shrimp... Was quite piss off... So is there anything I can do to prevent this from happening? Hope you can help give me some tips. It's appetite seems very big as i need to feed it twice per day with prawns meat and this happen after i feed it yesterday night. Is it due to the fact that all my fishes/ shrimp are small breed and easy prey for it to catch? I fear the worse cause all the creatures I keep are bottom dwellers. Hope to see your reply soon. Thanks.