Last week I picked up 2 pearly jawfish from the LFS hoping to become a pair...in the tank (which I asked to have them held together) they laid right next to each other and all the way up to when I put them in the tank. One was smaller with a softer face and the bigger one just looked like a male. Well they made 2 burrows a few rocks away from each other and I couldn't find the bigger one but when I fed them tonight they both emerged from the hole together. Does this mean they're a pair?