Happy Pets

The characteristic ‘head-down’ attitude adopted by these fishes when resting is probably an extension of the swimming position when searching for food, or a protective camouflage among plants.

Marbled Headstander

Abramites microcephalus 130 mm 5 in. South America : slow-moving waters. A larger, stockier fish than its relatives. Seven or eight broad dark bands cross the body vertically, the central band continuing across the dorsal and ventral fins. The other fins are yellow-brown. The head is very small, and a dark band crosses the eye obliquely. A shy fish, but has a reputation of being a fin-nipper and eater of soft-leaved plants. Temperature: 24^°C (75^°F). Diet: worms preferred, and greenstuffs. Breeding: no details available. (more…)

These are South American fishes distinguished from the Characidae by the lack of teeth in the lower jaw. In America, this group is known as Lebiasinidae.

Half-lined Hemiodus; Silver Hemiodus; Flying Swallow

Hemiodopsis (formerly Hemiodus) semitaeniatus 200 mm 71 in. South America : various waters. A very streamlined, silver fish. A dark spot is situated on the flank between the dorsal and adipose fins. After a gap, a dark line runs into the caudal fin, following a downward direction midway through the lower lobe. A fast swimmer, and loves a shoaling existence. Very attractive when young but grows rapidly. Temperature: 24°C (75°F), or slightly lower. Diet: all foods. Breeding: not yet bred in the aquarium. (more…)

Short-bodied Catfish

Brochis splendens (coeruleus) 76 mm 3 in. South America : slow-moving waters. Has a flat ventral profile and an arched back. The dorsal fin is long- based. The fins are brownish, and the body colour bronze/green. Very similar to the Corydoras genus but generally larger; the length of the dorsal fin is conclusive evidence. Temperature: 24^°C (75^°F). Diet: all foods; worms relished. Breeding: has been bred ; probably follows Corydoras pattern. (more…)

The typical underslung mouths of these fishes are used as a means of locomotion and anchorage, as well as for feeding, in fast-flowing waters.

Sucker Catfish; Plecostomus Hypostomus (formerly Plecostomus) plecostomus 450 mm 18 in. South America : various waters. The long, wedge-shaped body is covered with bony plates, which may be in three or four ridged layers, instead of only two as in Corydoras. (more…)

The Synodontis group have long barbels and long-based adipose fins. The dorsal fins are often large but not always displayed to best advantage. The caudal fins are deeply forked. A generic characteristic is the possession of lockable spines in the pectoral and dorsal fins, which may be erected when the fish is netted or driven into a hiding place. (more…)

Lampeyed Panchax; LampeyeAplocheilichthys (formerly Micropanchax) macrophthalmus 30 mm 1 in. Nigeria, Cameroon : forest streams. The body is not cylindrical, but more laterally compressed. Its colour is a delicate blue, with a faint gold line running from the gill cover to the caudal fin. The caudal fin may have a yellow tinge, with red marks at the edge. The eyes are blue. Unlike some Killifishes, this species does well in hard, alkaline water. A shoaling upper water level species, perhaps too small for a community collection. Temperature: 23-26^°C (73-78^°F). Diet: live and dried foods. Breeding: lays eggs over period of days in plants or mops. Eggs hatch in two weeks and fry mature in six months. (more…)

The young of these fishes develop inside the body of the female until they have absorbed the yolk-sac and are then released. Most livebearing fishes are easily sexed : male fishes have the anal fin modified into a rod-like structure called the gonopodium, through which the fertilizing spermatophores are introduced into the female. Gestation is approximately 3o days and broods may number from 20 to 200. It is possible for the females of some species to deliver successive broods without a repeat mating with the male. (more…)

Pike Top Minnow Belonesox belizanus Male 100 mm 4 in; female 150 mm 6 in. Belize, Guatemala: various waters. A predatory fish which lives up to the reputation of its much larger namesake. The large, tooth-filled mouth and powerful caudal fin bode ill for other fishes in the same tank, full-grown female Guppies being taken with ease. The body is dark blue-green with speckled markings and a spot on the caudal fin base area. Temperature: 24^°C (75^°F). The addition of salt to the water is beneficial. Diet: all foods, but predominantly live foods. Breeding: usual livebearer pattern. (more…)

The species in this group live in a wide range of natural habitats in rivers and lakes. They include many aquarium favourites, such as the Blue Acara, the Angelfish and the Oscar. Most are fairly large and may be aggressive at times.

Sheeps-head Acara; Flag Cichlid Aequidens curviceps 75 mm 3 in. S0uth America, Amazon basin : rivers. The grey-green body is slightly iridescent under reflected light. The scales have dark edges, the fins are flecked with blue-green and the d0rsal fin is blue-edged. A peaceful fish. Temperature: 24^°C (75^°F). Diet: all foods. Breeding: deposits eggs on an 0pen site. Parents 0ften eat their first spawning but, given a tank to themselves, usually prove t0 be go0d parents subsequently. (more…)

The majority of African Cichlids inhabit the Rift Valley lakes and are spectacularly coloured. These fishes are from naturally hard waters, unlike their South American relatives, and many relish algae or other vegetable matter in their diet. Some are mouthbrooding, and all appreciate a tank furnished with hideaways.

Aulonacara nyassae 150 mm 6 in. Lakes Malawi (Nyasa) and Tanganyika. Has an elongated, fairly deep body. Young males and females have brown bodies with several vertical dark bars, but mature males are deep royal blue with a red/gold suffusion on the flanks, which are crossed with dark bars. The fins are blue ; the dorsal fin is edged with pale blue and the caudal fin has dark blue/black streaks. A peaceful fish, but caves and hiding places must be provided in a reasonably sized tank. Temperature: 24^°C (75^°F). Diet: all foods. Breeding: mouth brooder. (more…)