Our Guide To Keeping Rio Atoyac Swordtail Fish

1. About Fish Species:

   • Scientific name: Xiphophorus hellerii "Rio Atoyac"
   • Common name: Rio Atoyac Swordtail
   • Family: Poeciliidae
   • Origin: Rio Atoyac, Oaxaca region, Mexico
   • Adult length: 10 to 12 cm
   • Lifespan: 3 to 5 years
   • Diet: Omnivore
   • Care Level: Easy
   • Temperament: Peaceful

2. Tank Setup:

   • Rio Atoyac Swordtails thrive in a well-planted tank with open swimming areas. A minimum tank size of 100L is recommended for a small group.
   • Include live plants such as Vallisneria, Water Wisteria, and Hornwort to simulate their natural environment.

3. Water Parameters:

   • These fish prefer slightly alkaline to neutral water with a pH range of 7.0 to 8.3.
   • Maintain water temperature between 22 to 28°C (72 to 82°F).

4. Filtration and Water Flow:

   • Moderate water flow is ideal. Use a reliable filter that ensures good oxygenation and maintains water clarity.

5. Diet:

   • Rio Atoyac Swordtails are omnivorous and accept a range of foods. Provide high-quality flakes or pellets as a base.
   • Supplement with blanched vegetables (like spinach or zucchini), and occasional live or frozen foods such as daphnia and brine shrimp.

6. Tank mates:

   • They do well in peaceful community setups and can be kept with mollies, platies, corydoras, and tetras.
   • Keep a ratio of one male to multiple females to prevent male harassment and stress.

7. Behavior and Compatibility:

   • Active and social, these swordtails enjoy the company of their own kind and other peaceful species.
   • Avoid fin-nipping species and aggressive cichlids to maintain a calm environment.