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OATA produce a good range of free care sheets for coldwater, tropical freshwater and marine fish as well as for invertebrates, aquatic reptiles and plants. This group of fish are not really sharks at all as they lack cartilage and teeth and are more closely related to the humble minnow. In a freshwater tropical aquarium, they can make striking additions.

OATA produce a good range of free care sheets for coldwater, tropical freshwater and marine fish as well as for invertebrates, aquatic reptiles and plants. The dwarf cichlids are popular fish for those who are interested in the behavioural traits of cichlids but do not want the aggression of the Lake Malawi and Tanganyika species.

OATA produce a good range of free care sheets for coldwater, tropical freshwater and marine fish as well as for invertebrates, aquatic reptiles and plants. This is a group of moderately aggressive to aggressive fish which originate from Central and South America and are members of the cichlid family.

OATA produce a good range of free care sheets for coldwater, tropical freshwater and marine fish as well as for invertebrates, aquatic reptiles and plants. Malawi cichlids are very colourful, diverse and aggressive fish. It is thought they are some of the most colourful tropical fish that can be kept. In the wild they are found in Lake Malawi, Africa.

OATA produce a good range of free care sheets for coldwater, tropical freshwater and marine fish as well as for invertebrates, aquatic reptiles and plants. If you would like to keep a more unusual species in your freshwater tank, then the following three species could be an option. They are the freshwater river stingrays, knifefish and elephant noses.

OATA produce a good range of free care sheets for coldwater, tropical freshwater and marine fish as well as for invertebrates, aquatic reptiles and plants. This group of fish includes the piranhas, snakeheads, wolf fish and other predatory fish. They originate from many parts of the world including Africa and the Americas.

OATA produce a good range of free care sheets for coldwater, tropical freshwater and marine fish as well as for invertebrates, aquatic reptiles and plants. Tropical freshwater algae eaters are often added to aquariums in order to help remove the build up of algae which grows in the tank.

OATA produce a good range of free care sheets for coldwater, tropical freshwater and marine fish as well as for invertebrates, aquatic reptiles and plants. Killifish, or ‘killies’, are a diverse group of generally small, colourful fish. Their name is believed to be derived from the Dutch for ‘pool’ or ‘puddle’. 

OATA produce a good range of free care sheets for coldwater, tropical freshwater and marine fish as well as for invertebrates, aquatic reptiles and plants. This diverse group of fish all belong to the Cobitidae family. Despite being closely related, this family includes the large clown loach, to the eel-shaped kuhli loach. 

OATA produce a good range of free care sheets for coldwater, tropical freshwater and marine fish as well as for invertebrates, aquatic reptiles and plants. The vast majority of fresh water fish offered in shops have been bred in captivity. Yet wild caught fish can add to the value and interest of the species available.