Telescope's are very much like Black Moors and have long been a very popular fancy Goldfish. As well as having long flowing fins, these fish have an egg-shaped body and 'telescope' eyes protruding from the head. Telescopes, like other Goldfish varieties has been bred in many different, attractive, and mixed colours. Their body size can grow to around 15 to 18cm (excluding the tails) in length although this does depend on aquarium size, feeding and general husbandry.