Rainbow trout is a very popular table fish the oily flesh has a rich earthy flavour the flesh ranges from light to dark pink depending on the amount of cartenoid food content in the fish feed they are easy to prepare either baked or grilledrnative to north america the colourful rainbow trout is one of the easiest fish to farm efforts to establish wild populations of rainbow trout in britain have not been successful because the species prefers warmer water temperatures almost all rainbow tr