Sword - Kohaku
Here are the requirements for keeping freshwater Swordtail fish (Xiphophorus hellerii):
Aquarium size: Provide a tank with a minimum capacity of 20 gallons (75 liters) for a small group of Swordtail fish. Larger tanks are recommended if keeping a larger group or housing them with other tank mates.
Water parameters: Maintain stable water conditions. The ideal temperature range is around 72-82°F (22-28°C), pH between 7.0-8.0, and hardness between 10-25 dGH. Swordtails are adaptable but prefer slightly alkaline water. Monitor and adjust these parameters as needed.
Tank setup: Create a well-decorated tank with plenty of hiding places and open swimming space. Swordtails appreciate live plants such as Java fern, Amazon swords, or Vallisneria, which provide cover and oxygenation. Use rocks, driftwood, and other decorations to create hiding spots.
Filtration and water flow: Use a suitable filtration system to maintain good water quality. Swordtails prefer moderate water flow, so adjust the filter output or use baffles to reduce excessive water movement. Regularly clean or replace filter media to ensure efficient filtration.
Lighting: Provide moderate lighting conditions. Use a lighting system that mimics natural day and night cycles, with a photoperiod of around 10-12 hours of light per day. This helps promote a natural day-night rhythm for the fish.
Diet: Offer a varied diet to ensure optimal nutrition. Swordtails are omnivorous and will accept high-quality flakes or pellets as their staple diet. Supplement their diet with live or frozen foods such as brine shrimp, bloodworms, daphnia, or small insects. Include vegetable matter in their diet, such as blanched spinach or spirulina-based foods.
Tank mates: Swordtails are generally peaceful and can be kept with a variety of community fish. They are compatible with other peaceful species like tetras, guppies, mollies, platies, and other similar-sized fish. Avoid aggressive or fin-nipping species that may stress or harm the Swordtails.
