Naseby is well stocked with the Fishers Pond strain carp to over 40lb, with a typical-sized fish being in the range of 18lb to 30lb. There's also a huge head of roach, which are often shoaled up on the dam wall. A haul of 50lb-plus of silvers is not unknown.
When the water is high after a wet winter, the dam wall platforms are your best bet for accessible pegs and these are often hotspots for winter pike fishing. Naseby has produced pike to over 30lb in the past. In the summer and autumn the water levels drop and you can fish from the reservoir bed, which is mostly made of gravel.