Compatibility brief
Can Celebes Rainbowfish live with Discus?
Caution. Check the issues below before buying.
Compatibility score
Profile confidence: low
How we decideFishori checks adult size and predation risk, behaviour, water requirements and tank needs before giving a verdict.
200L
Combined minimum footprint reference for these two species: about 200L (larger active fish often want more length).
Assessment details
Compatible temperaments
Both Celebes Rainbowfish and Discus share a peaceful temperament.
Narrow temperature overlap
Top issueCelebes Rainbowfish and Discus have only a narrow shared temperature range. Maintaining stable water temperature will be important.
Narrow pH overlap
These fish can share water but their ideal pH ranges overlap only slightly. Aim to keep pH stable in the shared range.
Hardness preference mismatch
Celebes Rainbowfish prefers hard water and Discus prefers soft water. One of them lives outside its comfort band long-term — pick the tank's water for the more sensitive species.
“Celebes Rainbowfish and Discus have only a narrow shared…”
Narrow temperature overlap
Next steps
Concrete changes, not "research more" filler.
- •Celebes Rainbowfish should be kept in a group of at least 6 for best health and behaviour.
- •Discus should be kept in a group of at least 4 for best health and behaviour.
- Seriously Fish. Marosatherina ladigesi
Primary: species page on Sulawesi limestone-stream origin (which explains the hard alkaline water requirement) and the extended-fin display in males.
- Practical Fishkeeping. Celebes Rainbowfish Profile
Secondary: editor coverage of stocking, water chemistry, and the colour development that needs months of stable water.
- Seriously Fish. Symphysodon aequifasciatus (discus complex representative)
Primary stand-in: Seriously Fish page for a common discus taxon. Trade 'discus' is often a mix of lineages, strains, and hybrids. Match your bag label, not a single name field here.
- FishBase. Symphysodon aequifasciatus
Taxonomy, distribution, and typical max length in natural/wild contexts (cross-check to aquarium import lines).
- Wikipedia. Discus (fish)
Encyclopaedia overview; use specialist aquarium sources for your stock's real temperature/pH/footprint needs.
Try this next
Build the full stocking list with Celebes Rainbowfish + Discus
Plan further
Check each species’ mates list, size the glass, then verify the full stock in the builder. Methodology explains how verdicts are produced.
Individual fish vary in personality. Fishori uses conservative hobby rules. Observe any new introduction closely, feed thoughtfully, and keep a quarantine or backup plan. This is not veterinary advice.
Profile data confidence: medium. Driven by the lower-confidence profile (Celebes Rainbowfish): Typical care sources — real tanks still vary.