Angelfish Care Guide: Tank Size, Diet, Tank Mates & Care
Angelfish require a tall aquarium of at least 20 gallons, a varied omnivorous diet, and peaceful tank mates that are not fin-nippers. They are a species of cichlid known for their graceful shape and can live 8-10 years with proper care.
Tank Size and Setup
For a single angelfish, a 20-gallon tall tank is the minimum. A pair or small group needs 30+ gallons. Taller tanks (18 inches or more vertical height) accommodate their long dorsal and anal fins. Avoid round or bow-front tanks as they reduce swimming area. Use a gentle filter (sponge or canister) because angelfish dislike strong currents. Water temperature should be 78-82°F, pH 6.5-7.5, and hardness 5-12 dGH. Decorate with tall driftwood, smooth rocks, and live plants like Amazon swords or Java fern. Leave open swimming space and provide vertical line-of-sight breaks (plants or decor) to reduce territorial aggression.
Diet and Feeding
Angelfish are omnivores. Feed a variety of high-quality flake or pellet food as a staple. Supplement with frozen or live foods such as bloodworms, brine shrimp, daphnia, and chopped earthworms. Offer blanched vegetables like zucchini or spinach occasionally. Feed small portions 2-3 times daily, what they can consume in 2-3 minutes. Avoid overfeeding to prevent water quality issues. For fry, offer infusoria, micro-worms, or crushed flakes.
Tank Mates
Select peaceful, non-aggressive fish that are not small enough to be eaten nor large enough to bully your angelfish. Good companions: larger tetras (rummynose, cardinal), corydoras catfish, bristlenose plecos, German blue rams, and rainbowfish. Avoid fin-nippers like tiger barbs, serpae tetras, and aggressive cichlids such as Oscars. Do not keep with small shrimp or tiny fish like neon tetras (may be eaten). As angelfish grow, their predatory instinct increases; observe any new addition.
Common Health Issues and Water Quality
Angelfish are prone to ich, fin rot, and hole-in-head disease. Ich appears as white spots; treat with raised temperature and medication. Fin rot results from poor water conditions; improve water quality and use antibacterial treatment. Hole-in-head is linked to nutritional deficiencies or poor water; maintain high water quality and varied diet. Always quarantine new fish for 2-4 weeks. Perform weekly 20-30% water changes and test parameters regularly. If you notice lethargy, loss of appetite, clamped fins, or odd swimming, consult a veterinarian.
Breeding Basics
Angelfish form pairs and lay eggs on flat vertical surfaces (slate, plant leaves). If you want to breed, lower pH slightly to 6.5-6.8 and raise temperature to 80-82°F. Provide a spawning site. After eggs are laid, parents guard them. Fry hatch in 2-3 days and become free-swimming after a week. Feed newly hatched brine shrimp or specialized fry food. Remove other fish to prevent egg predation. Not all pairs breed successfully; patience is key.
Final Tips
- Use a tank cover; angelfish can jump.
- Avoid sudden changes in water temperature or chemistry.
- Dim lighting reduces stress.
- Quarantine any new fish or plants.
By providing a spacious tank, quality diet, and compatible tank mates, your angelfish will display their full beauty and personality.
Key Takeaway
Provide a tall, spacious tank, a varied diet, and peaceful tank mates to keep your angelfish healthy and vibrant.