I came back from a week long trip to find one of my two ghost shrimps dead. They were set up in a cycled 2.5 gallon at around 68F (no heater) and are fed shrimp pellets and algae wafers. They were also the same size and stopped fighting over food as I gave them two separate pieces of it when I fed them. I didn't ask anyone to feed them because I hadn't cut up their food but I had fed them right before I left and I thought they could go a week without being fed. He was kind of buried inside the plant, so I don't think the other one killed him because I believe he wouldn't be able to drag him out, but I could see that the alive shrimp was eating him Any ideas as to what might have happened? I got home late so I haven't been able to test parameters, but the other shrimp looks fine and it usually sits at 0/0/<5. Any ideas would be appreciated. RIP Zero.