Freshwater Freaks species guide
Plan for a large, intelligent cichlid with a territory of its own.
Flowerhorns are interactive, powerful ornamental hybrids. Their appeal comes with a serious adult-space, filtration, and behavior commitment.
Ornamental cichlid hybrid · Super Red Dragon strain
The adult home
Choose a long, sturdy aquarium with a tight lid and open turning space. Use strong biological and mechanical filtration sized for a large, messy cichlid. Keep heater guards, intakes, and cords protected.
- Use smooth sand, rounded gravel, or a simple easy-to-clean bottom.
- Anchor large smooth rocks or wood directly and securely; Flowerhorns dig and rearrange décor.
- Avoid sharp edges, unstable rockwork, delicate plants, and cramped passages.
- Provide visual enrichment without sacrificing swimming room.
Stable, warm, clean water
A practical target is 78–84°F with a stable pH around 7.0–8.0. Domestic lines vary, so match the breeder water during transition and make any adjustment gradually.
- Ammonia: 0 ppm; nitrite: 0 ppm.
- Keep nitrate low through stocking discipline and regular water changes.
- Prioritize stability and oxygenation over chasing an exact pH with chemicals.
Feeding without overfeeding
Use a reputable large-cichlid pellet as the staple. Rotate suitable frozen or fresh items such as shrimp, krill, or insects in modest portions. Feed what is eaten promptly, usually once or twice daily for adults, and remove leftovers.
Avoid feeder fish, fatty mammal meat, and constant high-protein treats. These add disease, nutrition, and water-quality risks. Color foods cannot replace balanced nutrition and clean water.
Behavior and tankmates
Assume the fish will claim the entire aquarium. Individual tolerance varies, but aggression can escalate suddenly at maturity or during breeding behavior. A Flowerhorn that appears calm through glass is not evidence that direct cohabitation is safe.
- Single-fish housing is the clearest, safest default.
- Do not add small fish, timid fish, long-finned fish, or bottom dwellers as “clean-up crew.”
- Pairs require expert supervision, a very large aquarium, and a secure divider; breeding partners can seriously injure each other.
The first 72 hours
- Dim the lights and follow the acclimation instructions supplied with the shipment.
- Move the fish with minimal handling and do not add shipping water to the aquarium.
- Offer a small familiar meal only after the fish is settled; a skipped first meal is not unusual.
- Watch breathing, balance, waste, and collision with glass or décor.
- Keep foot traffic and sudden lighting changes low.
A repeatable care routine
- Observe appetite, breathing, posture, skin, fins, and waste daily.
- Test water whenever behavior changes.
- Change water regularly based on measured nitrate and waste load; many adult systems need substantial weekly changes.
- Rinse mechanical media in removed aquarium water and never replace all biological media at once.
- Clean the viewing panes and inspect lids, heaters, and heavy décor.
- Track size and adjust the environment before it becomes cramped.
Breeding behavior
Flowerhorn breeding is not a casual pair-up. Courtship and spawning can turn violent, fertility varies among hybrid lines, and adults need separation options. Use a divider that cannot be displaced, supervise introductions, and have a separate cycled aquarium ready. Parent profiles describe lineage; they do not guarantee an offspring’s adult color, kok, sex, or temperament.
Research notes and sources
Species-level ranges are planning guidance, not a substitute for the exact listing or the water information supplied with your fish. Tank volume alone is not enough: footprint, filtration, stocking, territories, and the adult fish all matter.