Can Dwarf Emerald Rasbora live with Blue Phantom Pleco?
Caution — with care
Why
- Very different sizes (Blue Phantom Pleco 7" vs Dwarf Emerald Rasbora 1") — these two need different tanks, and the smaller fish will be out-competed at feeding time.
- Only a narrow water hardness overlap — keep both around 5.5–7 dGH.
Sweet spot: both do well at 75–78°F and pH 7–7.6 — aim there.
Side-by-side
| Dwarf Emerald Rasbora | Blue Phantom Pleco | |
|---|---|---|
| Temperature | 68–78°F | 75–82°F |
| pH | 7–8 | 6.5–7.6 |
| Hardness (GH) | 5–15 dGH | 5.5–7 dGH |
| Adult size | 1" | 7" |
| 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: A larger tank · GH remineraliser
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