The paradise fish is quite easily the most overlooked but best beginner fish option. These fish are cheap, have amazing colours, are cold water tolerant, reach around 6cm, and have a wonderful personality. Originating from east Asia, this species is actually closely related to a gourami and is incredibly hardy which is why it makes for a great beginner fish. Through the years these fish have been in the aquarium hobby, line breeding has resulted in some very unique captive strains, one of the most contrasting of these is the albino paradise fish.