Black Molly Lyretail
The Black Molly Lyretail (Poecilia sphenops) is a striking freshwater livebearer known for its deep black coloration and elegant lyre-shaped tail fin. Peaceful, hardy, and active, this molly variety is a great choice for community aquariums, planted tanks, and livebearer setups.
Black Molly Lyretails add bold contrast and graceful movement to freshwater aquariums. Their hardy nature makes them a good option for beginner and experienced aquarists, especially when kept in stable water conditions with plenty of swimming space.
Key Features
- Deep black coloration with elegant lyretail fins
- Peaceful freshwater livebearer
- Hardy and adaptable aquarium fish
- Great for community aquariums and planted tanks
- Active swimmer that adds movement and contrast
- Can tolerate harder freshwater and lightly brackish conditions
- May breed readily in the aquarium
Care Requirements
- Scientific Name: Poecilia sphenops
- Common Name: Black Molly Lyretail
- Adult Size: Around 3–4 inches
- Temperament: Peaceful and community-friendly
- Tank Size: 20 gallons or larger recommended
- Care Level: Beginner-friendly to intermediate
- Diet: Omnivore
- Origin: Central and South America; commonly tank-bred
Water Parameters
- Temperature: 72–82°F
- pH: 7.0–8.2
- Water Hardness: Moderate to hard water preferred
- Setup: Freshwater; can tolerate lightly brackish conditions
Diet
Black Molly Lyretails are omnivores and do best with a varied diet. Feed quality flakes or small pellets as a staple food, and offer algae-based foods, spirulina, vegetables, and occasional frozen or live foods such as brine shrimp, daphnia, or bloodworms.
Tank Setup Tips
- Provide a 20-gallon or larger aquarium with open swimming space.
- Use live plants, décor, or driftwood for cover and visual barriers.
- Maintain stable water quality with regular water changes.
- Provide moderate filtration and good oxygenation.
- Feed some algae-based or vegetable matter regularly.
- Keep more females than males if keeping mixed sexes to reduce breeding stress.
Good Tank Mates
- Other mollies
- Platies
- Swordtails
- Guppies
- Peaceful tetras that tolerate harder water
- Corydoras catfish
- Rainbowfish
- Snails
- Other peaceful community fish
Tank Mates to Avoid
- Aggressive fish
- Fin-nipping species
- Large predatory fish
- Very soft-water species that do not match molly water needs
- Overcrowded community setups
Breeding
Black Molly Lyretails are livebearers, meaning females give birth to live fry instead of laying eggs. They may breed readily when males and females are kept together. If you want fry to survive, provide floating plants, moss, or dense cover for hiding places.
Frequently Asked Questions
Are Black Molly Lyretails good for beginners?
Yes. Black Molly Lyretails are hardy and adaptable, making them a good choice for beginners when kept in stable, clean water with proper tank mates.
How big do Black Molly Lyretails get?
Black Molly Lyretails usually grow to around 3–4 inches as adults.
Can Black Molly Lyretails live in freshwater?
Yes. They do well in freshwater aquariums, especially with moderate to hard water. They can also tolerate lightly brackish conditions, but standard freshwater setups work well for most hobbyists.
What do Black Molly Lyretails eat?
They eat flakes, pellets, algae-based foods, vegetables, frozen foods, and live foods. A diet with plant matter or spirulina is helpful for long-term health.
Do Black Molly Lyretails breed easily?
Yes. Like other mollies, they are livebearers and can breed readily when males and females are kept together.
What tank mates are good for Black Molly Lyretails?
Good tank mates include platies, swordtails, guppies, peaceful tetras, rainbowfish, corydoras, snails, and other peaceful community fish that enjoy similar water conditions.
Shop Black Molly Lyretails at Tropical Treasures Wyo
Black Molly Lyretails are elegant, peaceful, and hardy freshwater livebearers that make a beautiful addition to community aquariums and planted tanks. Shop Black Molly Lyretails and other freshwater livebearers at Tropical Treasures Wyo in Cheyenne, Wyoming.
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