you have a male and female from the looks of it. why they aren't pairing up and laying eggs is a mystery to me. but then again they could be like my loisellei pair - they act like an old couple! never fight, just swim next to one another. i've pumped them full of food, gave them a big tank, gave them places to hide and potentially spawn, mixed up the temperatures every now and then to try and stimulate them. but nothing. just wait a while i guess.