Quinn's Fins Least Killifish Heterandria Formosa - 10 Fish UNSEXED

Quinn's Fins Least Killifish Heterandria Formosa - 10 Fish UNSEXED

✅ Nano Tank Friendly – Perfect for small aquariums! Least Killifish are one of the smallest livebearers, maxing out around 1.2 inches, making them ideal for 5-10 gallon setups or species tanks. ✅ Peaceful & Community Safe – A gentle and non-aggressive species that thrives with similarly sized peaceful tank mates like shrimp, snails, and micro rasboras. ✅ Livebearers with Personality – Watch natural schooling behavior and enjoy the ease of breeding in a well-maintained planted tank. No special effort needed—fry often survive in dense vegetation! ✅ Easy Care & Hardy – Adaptable to a range of water parameters and great for both beginners and experienced aquarists. Enjoy low-maintenance fishkeeping with this underrated gem. ✅ Tank-Raised & Disease-Free – Responsibly bred in controlled environments to ensure healthy, parasite-free fish ready to thrive in your aquarium. Discover one of the world’s smallest livebearers—the Least Killifish (Heterandria formosa)—a peaceful, hardy, and fascinating species perfect for nano aquariums. Native to slow-moving waters of the southeastern United States, these tiny fish reach only about 1–1.2 inches in length, making them ideal for small tanks starting at just 5 gallons. Despite their name, Least Killifish are not true killifish but are more closely related to guppies and endlers. Their subtle beauty and calm demeanor make them a joy to watch, especially in well-planted tanks where they display natural schooling and breeding behavior. Males and females are easy to distinguish, with females being noticeably larger and carrying visible fry when gravid. These tank-raised Least Killifish are peaceful and compatible with shrimp, snails, and other micro-community fish. They're excellent for beginner aquarists and rewarding for seasoned hobbyists who enjoy observing interesting, low-drama behavior in a tranquil setup. Whether you're building a nature-style biotope, a shrimp-friendly community, or a small office desktop aquarium, Least Killifish are an outstanding addition.