My betta makes it very interesting to feed him lately in the big tank. Since we have 4 zebra danions and one betta we have to try to feed them at different times. We will open up the hood and throw in the tropical fish food, then when they are eating we try to throw fred's food in there. (the betta pellets) Some times we try to feed all of them and they eat eachothers food. Fred doesn't like the flake food and the danions don't like the pellets, but they try it anyway. They just end up spitting them out. Which causes the food to sink. Oh well