![]() If they are responsive and demanding with the food, it is more likely that they are in good health. If you are buying your fish from a hatchery or pet shop, ask the owner if you can see the fish eat. These infestations can be cured, but not without some difficulty for beginners. Faeces colour is influenced by the type of feed, however it should be dark.White droppings, either hanging from the fish or on the bottom of the tank may indicate intestinal parasites. If the fish is breathing heavily on one side and the gill cover is closed on the other side, it may be afflicted with gill flukes, a parasitic worm. Bilateral gill movement is also important. Black or dark eyes are a sign of ill health. ![]() Fins should be evenly shaped and the eyes clear, bright and appropriate to the size of the fish. #TYPES OF DISCUS FREE#The fish should rush towards you, looking for food and should have a uniform, rounded shape, free from wounds and deformities. When selecting discus, health is more important than the variety or even the colour of the fish. Eye colour may also vary, ranging from that similar to the fishes base colour to a brilliant red – most desired by aquarists. The male fishes colouration will become more pronounced during periods of sexual activity. The colours will flare and become more distinct if the animal is startled or feels threatened. Colours are patterned in vertical or horizontal bars overlaid with wavy lines that extend into the dorsal and anal fins. In the wild, most discus are a variation of green, brown or yellow. Colours include brilliant blues, turquoise, heckel (a brown or blue with a black bar in the middle of the fish), browns, greens, royal blues, yellows and reds. Colouration is a distinctive feature of these fishes and is a strong reason for their popularity amongst aquarists, though colouration will differ greatly depending on variety. The body of the discus fish is round, compressed and, as the name suggests, disk-like. But they are still difficult to maintain and require a lot of work. Huge advancements have been made in aquarium technology in recent years and this means that discus fish are now far easier to keep. They are a brightly coloured fish the colours greatly affected by mood, sex and hormonal chemistry. Both species occur naturally only in the Amazon basin of South America. Recommended for: experienced and dedicated aquarists The Family Cichlidaeĭiscus fishes belong to the Cichlid family, a family of fishes which comes in a surprising diversity of shapes, sizes and colours.ĭiscus fishes are derived from the many wild-occurring forms of two closely related species: Symphysodon aequifasciata and S. ![]() Temperament: inquisitive, best kept as single species ![]()
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