Recently I have had a fear of my Red Bellied Piranhas jumping out of the water and on to the floor\my bed. This fear is especially common among Piranha owners, thinking that they will find their fish dead on the floor. If I didn't have a light hood, this would surely have happened. This has happened to many piranha owners, who often find dead fish on the floor....the scary part is when you have to pick them up...using your hands? I don't think so!! They may still be alive and bite ya! Many times, I hear them banging into the hood and light and heaters....etc.....even with the hood, there is still a 1-1.5 inch space between where you knock out sections for HOB PF and heaters and so on. Scary...quite often I fear it when they eat floating cichlid pellets. They hunt the pellets when the water from the HOB power filter pushes the pellets down into the water more...very aggressive. Also, as an interesting side note, when one has bitten the others tail, the injured one fans the bite mark into plants, to sooth the pain I suppose. Their missing tail chunks grow back very fast, and I assume that was an accident. Never know....anyway...got any fish fears of your own...I'd love to hear em...