Cardinal Tetra and Zebra Pleco Compatibility Overview
Cardinal Tetra and Zebra Pleco can potentially coexist, but the combination requires careful attention. Their pH ranges overlap only partly, so aim for the shared band and keep it steady. A larger tank (minimum 55 gallons), dense planting, and close monitoring are essential.
| Factor | Cardinal Tetra | Zebra Pleco | Verdict |
|---|---|---|---|
| Temperature | 73โ82ยฐF | 79โ86ยฐF | โ ๏ธ 79โ82ยฐF (narrow) |
| pH Range | 4.5โ7.0 | 6.0โ7.5 | โ 6.0โ7.0 |
| Temperament | peaceful | semi | โ ๏ธ Monitor |
| Adult Size | 1.5 in | 3.1 in | โ ๏ธ 2.1ร difference |
| Min. Group | 6+ | 3+ | See below |
| Min. Tank Size | 55 gallons (for both species) | โ | |
Compatibility Positives
Caution Points
Species Profiles
Cardinal Tetra โ Paracheirodon axelrodi
Brilliant red-and-blue schooling fish from the Rio Negro. Prefers soft, acidic, warm water โ a natural companion for discus.
โ Full Cardinal Tetra care guide
Zebra Pleco โ Hypancistrus zebra
The Zebra Pleco is a popular freshwater species known for its distinctive black and white striped appearance. It is a peaceful community fish, suitable for tanks with other non-aggressive species. These plecos are moderate swimmers and prefer caves and crevices for resting. With proper care, they can live for up to 10 years in an aquarium.
Frequently Asked Questions
Can Cardinal Tetra live with Zebra Pleco?
With significant caution and a larger tank. Cardinal Tetra and Zebra Pleco can potentially coexist, but the combination requires careful attention. Their pH ranges overlap only partly, so aim for the shared band and keep it steady. A larger tank (minimum 55 gallons), dense planting, and close monitoring are essential.
What tank size do I need for Cardinal Tetra and Zebra Pleco together?
A minimum of 55 gallons is recommended for keeping Cardinal Tetra and Zebra Pleco together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Cardinal Tetra and Zebra Pleco?
79โ82ยฐF (narrow) โ inside Cardinal Tetra's 73โ82ยฐF and Zebra Pleco's 79โ86ยฐF.
Is a Cardinal Tetra aggressive toward a Zebra Pleco?
Cardinal Tetra is peaceful and Zebra Pleco is semi. No major aggression issues are expected between these species.
Related Compatibility Guides
Tank Size for Cardinal Tetra and Zebra Pleco
Use the scenario that matches the actual group sizes and temperament you plan to keep.
| Scenario | Tank | When it applies |
|---|---|---|
| Minimum viable | 55 gal | Only for the recommended minimum groups, mature filtration, and close monitoring. |
| Recommended community | 75 gal | Adds territory, swimming room, and a safer buffer for behavior. |
| Low-conflict setup | 125 gal | Best when keeping larger schools or reducing territorial pressure. |