Beckford’s Red Pencilfish
The Beckford’s Red Pencilfish is a vibrant and active marine fish native to the western Pacific Ocean. It is known for its striking red coloration and slender, pencil-like body shape. This species thrives in well-maintained marine aquariums with stable water conditions.
Key Features
- Color: Bright red with subtle silver highlights
- Size: Up to 3 inches in length
- Temperament: Peaceful and social, prefers group housing
- Water Conditions: Saltwater, temperature 75–82°F, pH 8.1–8.4
Specifications
| Parameter | Value |
|---|---|
| Species | Beckford’s Red Pencilfish |
| Length | Up to 3 inches |
| Temperature | 75–82°F |
| Salinity | Specific gravity 1.020–1.025 |
| Water pH | 8.1–8.4 |
FAQ
What is the ideal tank size for keeping Beckford’s Red Pencilfish?
A minimum of 30 gallons is recommended to provide adequate space for swimming and social interaction.
Can Beckford’s Red Pencilfish be kept with other fish species?
Yes, they are generally peaceful and can coexist with non-aggressive, similarly sized marine fish.
How often should water be changed in a tank with this fish?
Perform partial water changes of 10–20% every 4–6 weeks to maintain stable water parameters.

Christian Terry –
The red pencilfish is stunning in the tank. It’s active and adds a lot of visual appeal. I kept it with a group of other peaceful fish and they all get along well. Water parameters are stable after a few weeks of setup.
Molly Gill –
Beautiful fish with vibrant color. I noticed it swims in a group, which makes the tank more lively. Needs a well-maintained system, but worth the effort.
Maria Mackay –
Great addition to my marine aquarium. The fish is healthy and active. I’ve had it for two months and it hasn’t shown any signs of stress or illness.