lol, i can't take all the credit, my tank came with my pair of shrimps when i bought it so they may have already been accustomed to it. however, i have to say the first month or so that i had them they were more timid, however one day i tempted them out with a piece of mussel and ever since they've been very tame. Plus both them started cleaning my fish in the last month or so which i hadn't seen them do before. try some mussel, wave it around close to them and try and tempt them out with that, they'll get the msg