Discus Fish Care Guide: Discus fish, often called the “King of the Aquarium,” require specialized care to thrive. Here’s a guide to their needs: 1. Tank Setup and Environment: Tank Size: A minimum of 55 gallons is required, but 75 gallons or larger is recommended. Water Parameters: Temperature: 82-86°F (28-30°C), according to Green Aqua. pH: 6.0-7.0, says Aqueon. Hardness: 1-4° dKH (18-70 ppm), notes Aqueon. Filtration: Robust filtration is essential for pristine water quality. Décor: Include broadleaf plants and driftwood for hiding places. Fine sand or smooth gravel substrate. Lighting: Moderate lighting is preferred. Water Changes: Regular water changes (10-25% weekly) are vital for maintaining water quality. 2. Feeding and Diet: Omnivorous: Discus eat both plant matter and small invertebrates. Diet Variety: Offer a mix of: High-quality discus flakes and granules. Frozen and live foods (bloodworms, brine shrimp). Some vegetables like spirulina flakes. Feeding Frequency: Feed small amounts 2-3 times daily. 3. Tank Mates: Discus are generally peaceful but can be aggressive towards each other. Suitable Tank Mates: Cardinal tetras, neon tetras, rummynose tetras, clown loaches, dwarf cichlids. Avoid: Aggressive or overly active fish that might stress discus. 4. Health and Disease Prevention: Quarantine New Fish: Quarantine new fish before adding them to the main tank. Monitor Water Quality: Regularly test and maintain water parameters. Observe for Signs of Stress: Watch for changes in color, behavior, or appetite. 5. Breeding Discus (Advanced): Specific Water Parameters: Breeding requires softer, more acidic water. Patience and Observation: Breeding discus can be challenging and requires close observation. Important Note: Discus keeping is not for beginners. They are sensitive to water conditions and require diligent care and attention.