Rainbow trout
Oncorhynchus mykiss
Rainbow trout are widely stocked into small stillwater fisheries and reservoirs throughout Wales. Rainbow trout do not breed in Wales and stocked fish are triploids.
Rainbow trout grow quickly in Welsh lakes, where they thrive in the cold water, providing great trout fishing. Fly fishing is the favourite method for them, although some waters are any method.
Rainbows provide fantastic fishing on our larger reservoirs, with fish often of a high average size – 45cm plus. There are several stocked variations of rainbow trout – including blue trout and golden trout.
Find places to go trout fishing in Wales here.

Escape to the Elenydd VIDEO - Fly Fishing for Trout on Llyn Cerrigllwydion Uchaf & Isaf, Elan Valley Wales
We join Ceri Thomas and Alan ‘Parf’ Parfitt on an epic adventure to the Elenydd, a vast area of moor…
Read More
Beginner’s Guide to Winter Stillwater Fly Fishing in Wales – Catching Trout in February
Think fishing in winter is too cold and difficult? Think again! Many stillwaters in Wales stay open all year, offering…
Read More
New Trout Season - Check List To Fish!
As the long winter months finally give way to spring, excitement builds for trout anglers across Wales. The long-anticipated 3rd…
Read More