Can Common Pleco live with Molly?
Caution — with care
Why
- Very different sizes (Common Pleco 24" vs Molly 4") — these two need different tanks, and the smaller fish will be out-competed at feeding time.
Sweet spot: both do well at 72–82°F and pH 7–8 — aim there.
Side-by-side
| Common Pleco | Molly | |
|---|---|---|
| Temperature | 72–82°F | 72–82°F |
| pH | 6–8 | 7–8.5 |
| Hardness (GH) | 5–20 dGH | 12–30 dGH |
| Adult size | 24" | 4" |
| Temperament | Peaceful | Peaceful |
| Min tank | 150 gal | 30 gal |
Together, plan on at least 150 gallons.
Design the whole tank, not just the stocking
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Design a tank with Common Pleco, Molly →Everything compatible with Common Pleco · …with Molly