I was trimming up a plant and a fly kept buzzy around me. When I slapped at it, it landed upside down in the tank. Several of my fish saw it and did the mad dash for it! It had no time to escape and my Lion gobbled it up. Lol! Should I be worried? It was a common house fly and fish eat all kinds of bugs in the wild, when they can catch them. The Lion looks perfectly happy and keeps coming back to me like he's saying "do you have another one?"... Lol!