Two weeks ago, as I was looking at my seahorses, I realizes that I did not see one of my smaller females. I looked everywhere for her and couldn't locate her. Finally I peaked under a rock where a small cave was formed and she was there....looking extremeley uncomfortable and when I moved the rock that formed the cave, she kept her head down like she had been stuck in an awkward position too long and had a crick in her neck, she also seemed skinny so I moved her into a hospital tank where she seemed listeless and died within a few hours. :sad: Then yesterday, again one of my horses was missing. Again, I found her hidden in this time a different cave and already dead. Neither of these horses had shown any sign of sickness. Both had been eating, no marks on their bodies and I have not added anything new to my tank to cause this. Has anyone else experienced the sudden death of their seahorses??? Any ideas what it could be?