So I just got home from being on base for a couple a weeks, my fiance has been taking care of my boys. When I returned home she told me they have been eating just fine and looked great, I went home and they did look great. I tested the water qualities and everything was perfect. But, when returning home from church this morning I found them in a lip lock. They have been in a constant lip lock since. I have never experienced this and do not know what to do, can anyone help me with some advice.