So In the only time I ever Feed Feeders to my tank It stabs me in the Hand... Literally. So I am normally against feeding Anything live. Not because of its cruel or anything, im pretty realistic about that kinda thing. But because of the diseases and problems that could happen. But Never once in my life did i think It would hurt me in anyway (other than a loss of a fish and loss in my wallet). So i hold the net up to the glass in my monster tank to show my fish whats for breakfast. I got my fish's attention, they go nuts. so i pick a nice feeder goldfish out of the net (yes they were all quarantined 3 days ahead) and right as i remove the cinderblock and grab the glass top handle, my arowana rockets out of the water, breaks my glass top and glass shatters into my palm. Moral of this mistake? Dont excite your fish and wait till your arowana is on the other side of the tank. I put some plywood and the cinderblock back on top. going to go buy another glass top...