Lake Cascade

How can an angler tell the difference between a steelhead planted in lake cascade and other rainbow trout?

I noticed that A-run steelhead have been planted in lake cascade along with other trout. Will the steelhead have a clipped adapoise fin or some other telltale sign? Are steelhead tags required? Do you target the steelhead with the same kind of fishing gear you would kamloops or other trout? Is IDFG going to continue stocking cascade and other lakes with stellhead in the future? Detailed info would be great