Rudd is related to roach and inhabit the inland and coastal waters of southern Finland. This beautiful fish resembles roach, but can easily be distinguished from it by its red fins and tail. Larger rudd can reach a maximum length of 40 centimetres. They have a slightly coppery hue, whereas younger ones are silver flanked. The rudd favours eutrophic areas of still lakes or bays and does dislike streaming water. It consumes gastropods, isopods and insect larvae, although the adult rudd also eats water plants, such as bladder wracks, filamentous algae and kelp. The rudd is quite bony and not an ideal food fish.