fish-tank › fish species
Blue Diamond Discus (Symphysodon aequifasciatus)
Discus require pristine water (near-zero nitrate), stable 84F+, and daily large WCs — experienced keepers only. RO water typically required outside Amazon-soft tap.
Specifications
- ecosystem
- freshwater
- min tank gallons
- 75
- adult size in
- 8
- temperature range f
- 82-88
- ph range
- 5.5-7.0
- gh range dgh
- 1-8
- care difficulty
- advanced
- aggression
- semi_aggressive
- community compatible
- no
- schooling min count
- 6
- diet
- carnivore
- lifespan years
- 10-15
- tank zone
- middle
Sources
- Aquarium Co-Op video / blog content · ingest 2026-05-06
- Practical Fishkeeping public articles · ingest 2026-05-06
- r/Aquariums + r/PlantedTank + r/ReefTank public threads · ingest 2026-05-06