They aren't shy at all now and I have no problems feeding them. I had a pair but they seem to have split up. I have not see the female for at least 3 weeks. She must have died in a shell or something...

They have not even tried to breed. They don't even dig in the sand and are hardly keeping me entertained. I think I may try multifasciatus. Are you sure they get larger than brevis??? I accidentally got one and have had it for a while and it is definitely smaller.