Mangrove rivulus (Kryptolebias marmoratus)

Scientific name: Kryptolebias marmoratus Poey, 1880

The Mangrove rivulus (Kryptolebias marmoratus) is a freshwater fish of the family Rivulidae. In the aquarium it needs water at 18–24°C (64–75°F).

Mangrove rivulus care at a glance

Dark spot surrounded by yellow ring on side of caudal peduncle, just ahead of upper part of caudal fin base.

Source: FishBase, licensed CC BY-NC 4.0.

Scientific name: Kryptolebias marmoratus
Family: Rivulidae (Rivulines)
Order: Cyprinodontiformes (Live bearers, Killifishes and Rivulines)
Class: Actinopterygii (Ray-finned fishes)
Maximum length: 7.5
Environment: Freshwater; brackish;; pH range: ? - 7.5; dH range: ? - 16 benthopelagic; non-migratory; depth range 0 - ? m
Climate: Tropical
Distribution: North, Central and South America: eastern coasts of Florida (Indian River to Key West) in USA and Bahamas to Cuba, Jamaica, Cayman Island, Brazil, French Guiana, the Netherlands Antilles, Venezuela, Belize, Mexico, Puerto Rico. Throughout Caribbean.
Conservation status (IUCN): Lower Risk: least concern (LR/lc)
Threat to humans: Harmless
Uses: Aquarium: commercial; bait:
Resilience: High, minimum population doubling time less than 15 months (tm=0.5)