Can Phoenix Rasbora live with Discus?
Caution — with care
Why
- Almost no shared temperature: Phoenix Rasbora wants 75–82°F and Discus wants 82–88°F, so only 82°F suits both — too fine a margin to actually hold.
- Very different sizes (Discus 8" vs Phoenix Rasbora 0.8") — these two need different tanks, and the smaller fish will be out-competed at feeding time.
Sweet spot: both do well at 82–82°F and pH 5.5–7 — aim there.
Side-by-side
| Phoenix Rasbora | Discus | |
|---|---|---|
| Temperature | 75–82°F | 82–88°F |
| pH | 4.5–7 | 5.5–7 |
| Hardness (GH) | 1–8 dGH | 1–8 dGH |
| Adult size | 0.8" | 8" |
| Temperament | Peaceful | Peaceful |
| Min tank | 10 gal | 55 gal |
Together, plan on at least 55 gallons.
How to make it work
- Target the overlapping water-parameter range and acclimate slowly.
Sort it with: An adjustable heater · A larger tank
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Design a tank with Phoenix Rasbora, Discus →Everything compatible with Phoenix Rasbora · …with Discus