I ask this here because I have recently started ice fishing as a serious endeavor for the first time in my life at a lake near where I am temporarily living in Colorado. In these lakes I'm mostly catching lake trout but there are also browns, rainbows and the occasional pike. I feel that I have had more successful outings than I have been skunked, and to be honest this type of fishing is really fun, especially when a large lake trout pulls drag through a hole in the ice. But there are some times where I cannot find anything on the fish finder and can't get a bite. At first I thought there would be some kind of barometric pressure or cloud cover aspect to it, but I'm really seeing no correlation between when they bite and when they don't. Is there something I am missing?