DISCUS GOLDEN TIGER SIZE 3.5 INCH

At three and a half inches, the golden tiger already wears its namesake stripes.

The Golden Tiger Discus is a stunning, peaceful freshwater fish that brings vibrant colour and elegance to any warm, soft-water aquarium. A true centrepiece.

• Water Conditions: The Golden Tiger Discus requires pristine, warm water to thrive. Maintain a temperature between 28°C and 30°C (82°F–86°F) — stability is critical, so use a reliable heater and avoid fluctuations. The pH should be slightly acidic to neutral, ideally 6.0–7.0, though captive-bred specimens often adapt to 7.2. Water hardness should be soft, between 1 and 8 dGH (17–143 ppm). Nitrates must be kept below 20 ppm, and ammonia and nitrite at zero. Invest in a high-quality canister filter with gentle flow, as discus dislike strong currents. Perform 30–50% water changes weekly using pre-heated, dechlorinated water; for juveniles, two smaller changes per week are better. RO/DI water blended with tap water can help achieve ideal parameters. Regularly test for pH, hardness, and nitrogenous waste to prevent stress and disease.
• Suitable Tank Mates: Because discus are slow, peaceful, and easily intimidated, choose tank mates that are calm, non-aggressive, and won't outcompete them for food. Ideal companions include cardinal tetras, rummy-nose tetras, glowlight tetras, and pencilfish — these small schooling fish add activity without causing stress. Bottom dwellers like Corydoras catfish and bristlenose plecos are excellent, as they clean up leftovers and stay out of the discus's way. German blue rams and Apistogramma species can work in larger tanks with plenty of hiding spots, but watch for territorial behaviour. Avoid fin-nippers (e.g., barbs, serpae tetras), fast-swimming fish (e.g., danios), and aggressive cichlids (e.g., angelfish, oscars, jack dempseys). Also avoid goldfish, which prefer cooler water. Invertebrates like snails and Amano shrimp are usually safe, but smaller shrimp may be eaten. Always quarantine new tank mates to prevent introducing disease.
• Feeding Habits: Discus are carnivorous and require a high-protein, varied diet to maintain their vibrant colour and health. Feed 2–3 small meals daily, offering only what they can consume in 2–3 minutes to avoid overfeeding and water fouling. Staple foods include high-quality discus pellets or granules, frozen or freeze-dried bloodworms, brine shrimp, mysis shrimp, and blackworms. A homemade beefheart mix is popular among breeders but should be used sparingly due to its high fat content and potential to cloud water. Newly acquired discus may refuse food for a few days due to stress; try tempting them with live or frozen bloodworms. Soak freeze-dried foods in tank water before feeding to aid digestion. Avoid feeding live tubifex worms, which can carry parasites. Establish a routine, as discus thrive on consistency. Remove uneaten food after 10 minutes to keep water quality high. Supplement with vitamin-enriched foods, especially for juveniles like the 3.5-inch size, which need extra nutrition for growth.
• Care Requirements: Caring for Golden Tiger Discus demands commitment and attention to detail. Always quarantine new fish for 4–6 weeks before adding them to your main tank. Observe daily for signs of illness: clamped fins, hiding, loss of appetite, white spots, or rapid gill movement. Common ailments include ich, hole-in-the-head disease (often linked to poor water quality or hexamita), and fin rot. Maintain a stress-free environment by keeping the tank in a quiet area, avoiding sudden lights or loud noises, and providing plenty of vertical hiding spots with driftwood or tall plants. Handle fish only when necessary, using a soft net. Keep a hospital tank ready with a sponge filter and heater. Because discus are schooling fish, keep a minimum of 5–6 individuals; this spreads aggression and makes them feel secure. A group of 6 in a 75-gallon tank is ideal. Regular observation and prompt action are key to long-term success.
• Tank Setup and Growth: For a 3.5-inch Golden Tiger Discus, start with a grow-out tank of at least 55 gallons for a group of 6, then upgrade to 75 gallons or more as they mature. Use a bare-bottom tank for easy cleaning, or a thin layer of soft sand; avoid gravel that traps debris. Provide driftwood, broad-leafed plants (e.g., Amazon swords, Anubias), and floating plants to diffuse light and offer cover. Discus prefer subdued lighting, so use LED fixtures with dimmers or floating plants. Keep the tank covered, as discus can jump when startled. Maintain a consistent photoperiod of 8–10 hours. Filtration should turn over the tank volume 4–6 times per hour, but baffle the output to reduce current. At 3.5 inches, these fish are juveniles and will grow rapidly with proper feeding and water changes — expect them to reach 6–8 inches within a year. Monitor growth and adjust tank size accordingly.