Our Guide To Keeping Berlin Swordtail Fish

1. About Fish Species:

   • Scientific name: Xiphophorus helleri
   • Common name: Berlin Swordtail
   • Family: Poeciliidae
   • Origin: Central America, specifically southern Mexico to northwestern Honduras
   • Adult length: 10 to 12 cm
   • Lifespan: 3 to 5 years

2. Tank Setup:

   • Berlin Swordtails thrive in a tank with open swimming space and a minimum size of 75L for a small group.
   • Include plants like Anubias, Vallisneria, and Java Fern, as well as driftwood or rocks to provide hiding spots and mimic their natural environment.

3. Water Parameters:

   • Berlin Swordtails prefer a pH range of 7.0 to 8.2, slightly alkaline conditions.
   • Maintain a water temperature between 22 to 28°C (72 to 82°F).

4. Filtration and Water Flow:

   • These fish are accustomed to moderate water flow, so use a filter that provides a gentle to moderate current.

5. Diet:

   • Berlin Swordtails are omnivores, feeding well on a balanced diet of high-quality flakes or pellets.
   • Supplement their diet with live or frozen foods like bloodworms, brine shrimp, and daphnia for added nutrition and variety.

6. Tank Mates:

   • Berlin Swordtails are generally peaceful and can be kept with other livebearers or small, non-aggressive community fish like guppies, platies, and mollies.
   • Avoid keeping them with larger or aggressive fish species that may stress or harm them.

7. Behavior and Compatibility:

   • Berlin Swordtails are active swimmers and enjoy group environments, although males may show mild aggression toward each other in limited space.
   • Provide enough space and cover to reduce territorial behavior among males.