In my cycling RCS tank, I put 8 .5 inch platy fry in there to cycle it. They were doing great with no signs of ammonia stress and that tank was turning out good. There's only one problem. I woke up this morning to find ask of my fry gone. They've not in the tank, not in the filter, and bit on the floor. I took out all of the decorations, still nothing. Sifted through the gravel very slowly, nothing again. Now I have an empty 10g wondering where the hell my fry went. Please comment and give me some suggestions on what could've happened. Last night only my dog was in my room, but my cats. But he's only 15 pounds and stands a foot tall when I have my 10g on a stand. When he does look at my fish, his paws reach the ledge of the stand and his had can never get to the top of the tank. Plus, there's a lid on the tank so he can't get his head in the tank anyway. I'm just really freaked out right now.