Lithobates Hap Care Guide - Aquarium Setup, Diet & Breeding

Otopharynx lithobates, commonly known as the Lithobates Hap or Sulfur Head Hap, is a striking Lake Malawi cichlid. Mature males develop an intensely yellow to golden head and throat, contrasting with a blue body that may show darker vertical markings and iridescent highlights. Females are more subdued, generally silver-grey or brownish with variable barring.

This species is an active, robust hap rather than a peaceful community fish. Males may defend territories and display vigorously to females, especially when mature or breeding. Their behaviour is often most interesting around rocky boundaries, where they investigate the substrate and challenge rivals.

In the wild, Lithobates Haps inhabit areas where rock formations meet open sand. They are associated with the diverse rocky shorelines of Lake Malawi, using crevices and uneven terrain for shelter and territorial displays while searching the surrounding surfaces for food.

Like many Malawi haps, their adult colours develop gradually and are usually strongest in mature, dominant males. Individual colour intensity varies with age, health, social position and mood, making a settled aquarium group especially rewarding to observe.

Otopharynx lithobates is endemic to Lake Malawi in East Africa. It is associated with the southern and central parts of the lake, where it occurs around rocky areas and adjacent sandy habitats.

A single male with several females should be given at least 300 litres, with a footprint of about 120 x 45 cm or larger; a longer aquarium is preferable for a group or mixed Malawi display. Use a sandy substrate with securely arranged limestone or other aquarium-safe rockwork, creating caves, territories and visual barriers while leaving open swimming areas. Strong filtration, good oxygenation and stable alkaline water are important, and any rocks must be placed securely so they cannot collapse or be undermined.

Males can reach approximately 15 cm (6 in) in length, while females are usually smaller at around 11–12 cm (4.3–4.7 in).

Offer a varied omnivorous diet based on high-quality Malawi cichlid pellets or granules, supplemented with spirulina-based foods, mysis shrimp, brine shrimp and other suitably sized frozen foods. Feed modest portions once or twice daily rather than allowing excess food to accumulate. Avoid making fatty, mammal-based foods or an overly rich diet a regular part of the menu, as these can cause digestive problems in African cichlids.

Suitable companions include similarly sized Lake Malawi haps and robust peacock cichlids with comparable water requirements and temperament. Tankmates should be chosen carefully, with plenty of space and visual breaks to reduce territorial disputes. Avoid mixing this species with peaceful community fish, very small species, slow-moving fish or similarly coloured males that may provoke persistent aggression. Keeping only one male, together with several females, is generally the safest arrangement for a species group.

Otopharynx lithobates is a maternal mouthbrooder. Provide one male with several females and condition them with a varied, protein-rich diet. After spawning, the female collects the eggs in her mouth and incubates them for around three weeks. She can be moved to a separate aquarium if raising the fry is a priority, although transferring a brooding female should be done carefully. Newly free-swimming fry accept baby brine shrimp and finely powdered foods.

Males are larger and much more colourful, developing a yellow or golden head and throat with a blue body and stronger finnage. Females remain smaller and are typically silver-grey or brownish, often retaining more obvious dark barring. Juveniles and subordinate males may resemble females until they mature.