Cubanichthys pengelleyi

Cubanichthys pengelleyi (The Jamaican killifish) is one of the rarest freshwater fish available in the aquarium hobby. Native to Cuba, this beautiful species is prized for its iridescent blue-green coloration, yellow to orange finnage, and active personality. It is seldom offered for sale, making it an excellent choice for hobbyists looking to keep something truly uncommon.

At Orange Aquatics, our Cubanichthys pengelleyi are carefully raised in-house and conditioned before shipping. We focus on producing healthy, well-started fish that adapt quickly to their new aquariums. Every order is packed with care to ensure your fish arrive safely.

Care Information

• Scientific Name: Cubanichthys pengelleyi
• Origin: Cuba
• Adult Size: Approximately 1.5–2 inches (4–5 cm)
• Temperament: Peaceful
• Difficulty: Easy to Moderate
• Diet: High-quality flakes, small pellets, frozen foods, baby brine shrimp, daphnia, and other live foods
• Aquarium Size: 15 gallons or larger recommended
• Temperature: 68–78°F (20–26°C)
• pH: 7.0–8.2
• Breeding: Egg scatterer
• 1 teaspoon of salt per gallon of water is required

Whether you’re a killifish enthusiast, a collector of rare species, or simply looking for a fish that stands apart from the ordinary, Cubanichthys pengelleyi is a fascinating addition to any freshwater aquarium. Their rarity, active nature, and rewarding breeding behavior make them a species you’ll enjoy for years.

Group of 6 fish unsexed at 1/2-1”