Neither fern ridge or long tom are suitable for trout IMHO as they're very warm, and I wouldn't want to eat native fish out of the long tom, there is a lot of industrial waste and farm runoff in that water.
I did see an amazing sight below the fern ridge dam by kirk pond a few weeks ago though; an enormous school of small channel cats 5 or 6 inches long.. They were all rising to the surface along the currents and I thought they were oil flows at first.. The water was almost black! Thousands of them in a stretch a hundred feet long. Some big carp jumping around as well, bit nothing I would want to eat sadly.