I have a 200 yard stretch of Wiltshire stream fed by a large mill pond (not mine). Apart from a large Ox-Bow pond (which is still fed by the stream) the minimum width of the stream is 6' and the maximum 12'. The maximum depth is about 1' - a shade more at rock pools possibly. The water is clean, fast flowing and currently supports a fair number of crayfish, unfortunately the pesky signal variety. Apart from the odd heron, the only predators of note capable of taking yearling trare Mink (courtesy of the ALF) and allegedly Otter, although I would happily feed them all the trout they wanted. Does anyone have experience of keeping trout - pitfalls or tips etc? Although we have had a couple in the past I assume they fell down the monk from the stocked mill pond - I've not bothered with them in any large numbers.