The reservoir i fish at is very deep and clear.I have tried live baits on spinners while trolling.Have yet to catch anything. I also used crank baits casting at the rock piles.Some people say you can only catch them at night.Can you please tell me what to do.

This question is very difficult as it seems a little incomplete, and never does tell me where you are fishing and what type of fish you are hoping to catch, but I can give you some general tips on catching fish in clear, deep water, and in the use of live bait and spinners. Maybe this will help. When fishing in clear water, the best types of bait are the ones that tend to be closest to the natural food sources present in the water, and ones that are the most easily seen. Especially if the food source is plentiful, it will help if your bait is the thing that easily catches the attention of the target fish. Most seasoned fishermen believe that live bait is the best thing to use when attempting to catch fish. The top live bait for general purpose fishing is generally agreed upon as being worms (earthworms or bloodworms being the most popular, with grubs following closely behind) minnows, shad, crawfish, and crickets. These bait choices change somewhat when changing from fresh to saltwater. Good live bait for saltwater fishing depends in large on the type of fish you are hoping to catch. Again, this would be much more easily answered if I knew what type of fish you were hoping to catch. If you are fishing in clear water for a type of fish that bites well at night, it stands to reason that things like boat presence and visibility will not be such an issue at night. Especially when you are fishing for a spooky fish. If you are fishing for larger fish, it is true that they tend to avoid shallow water, but even the larger fish move into the shallows at night to feed. Night fishermen often see lots of successful catches because of this. Also, if you are fishing at night, concentrate on areas that have some cover near areas with light nearby, because insects and bait fish will be drawn to the light, and larger fish will be drawn by the presence of bait.