Clown Pleco and Silver Arowana Compatibility Overview
Clown Pleco and Silver Arowana are generally not recommended to be housed together. The adult size gap creates a meaningful predation risk. Clown Pleco is peaceful and Silver Arowana is aggressive. Expect chasing and fin damage unless the tank is oversized, heavily planted, and watched closely. Review the behavior and water details before deciding whether to attempt the pairing.
| Factor | Clown Pleco | Silver Arowana | Verdict |
|---|---|---|---|
| Temperature | 73โ82ยฐF | 68โ86ยฐF | โ 73โ82ยฐF |
| pH Range | 6.5โ7.8 | 5.0โ7.5 | โ 6.5โ7.5 |
| Temperament | peaceful | aggressive | โ Risk |
| Adult Size | 3.5 in | 31.5 in | โ 9ร difference |
| Min. Group | 1+ | 1+ | See below |
| Min. Tank Size | 100 gallons (for both species) | โ | |
Compatibility Positives
Incompatibility Reasons
Species Profiles
Clown Pleco โ Panaqolus maccus
The Clown Pleco is a popular freshwater fish known for its dark brown body with light spots and long, flattened body shape. They are peaceful and make great community fish for beginners. These plecos are moderate in activity level and prefer a tank with plenty of hiding spots.
โ Full Clown Pleco care guide
Silver Arowana โ Osteoglossum bicirrhosum
The Silver Arowana is a majestic and unique fish known for its striking appearance and size. It is a large, predatory fish that requires a spacious tank and specific water conditions. While not a community fish, it can be kept with compatible, larger species. They are sensitive to stress and require careful water quality management.
Frequently Asked Questions
Can Clown Pleco live with Silver Arowana?
Generally not recommended. Clown Pleco and Silver Arowana are generally not recommended to be housed together. The adult size gap creates a meaningful predation risk. Clown Pleco is peaceful and Silver Arowana is aggressive. Expect chasing and fin damage unless the tank is oversized, heavily planted, and watched closely. Review the behavior and water details before deciding whether to attempt the pairing.
What tank size do I need for Clown Pleco and Silver Arowana together?
A minimum of 100 gallons is recommended for keeping Clown Pleco and Silver Arowana together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Clown Pleco and Silver Arowana?
73โ82ยฐF โ inside Clown Pleco's 73โ82ยฐF and Silver Arowana's 68โ86ยฐF.
Is a Clown Pleco aggressive toward a Silver Arowana?
The adult size gap creates a meaningful predation risk.
Related Compatibility Guides
Tank Size for Clown Pleco and Silver Arowana
Use the scenario that matches the actual group sizes and temperament you plan to keep.
| Scenario | Tank | When it applies |
|---|---|---|
| Minimum viable | 250 gal | Only for the recommended minimum groups, mature filtration, and close monitoring. |
| Recommended community | 350 gal | Adds territory, swimming room, and a safer buffer for behavior. |
| Low-conflict setup | 450 gal | Best when keeping larger schools or reducing territorial pressure. |