From Microcosm Aquarium Explorer
The Rainbow Cichlid is a popular, not-too-large cichlid that is relatively peaceful and full of personality. Has unique tricuspid teeth, which it uses to rasp filamentous algae, a major part of its diet in the wild, from rockwork and other aquarium decor.
Other common name(s):
Habitat: It needs a tank with a fine-grade gravel substrate, and lots of hiding places in the form of rocks and roots, or inverted flowerpots. Tends to leave plants alone.
Maximum length: 13 cm (5 in)
Minimum aquarium size: 76 L (20 gal)
Water: Freshwater 22 °C (72 °F) - 26 °C (79 °F)
General swimming level: Bottom to midwater.
Omnivore. Because a good portion of the Rainbow Cichlid’s diet in the wild is filamentous algae, be sure to provide sufficient plant matter in their diets, including commercial Spirulina foods. Also provide a variety of commercial foods designed for cichlids, as well as live, frozen and freeze-dried foods, such as brine shrimp or bloodworms.
H. multispinosa is a territorial, but peaceful, cichlid that is rarely aggressive except during spawning.
Sexes are easy to distinguish. Lays large numbers of eggs on a clean rock. Fry are guided into pits where the parents guard them.
Keep one male to several females, with other fishes of similar size and temperament.