Chalk Basslet (Serranus tortugarum)
A small, peaceful basslet with a lavender to pale purple body, highlighted by bright yellow horizontal stripes running from head to tail. Native to the Caribbean, it is an active swimmer that often hovers in the water column or darts among rockwork. Its vibrant colors and calm temperament make it an excellent choice for reef aquariums.
Lighting
Low to moderate lighting
Adapts well to all standard reef lighting
Placement (Aquarium Zone)
Mid to lower reef
Prefers rockwork with caves and crevices but also spends time swimming in open water.
Temperature
24–27°C (75–81°F)
Salinity
1.024–1.026 SG
pH
8.1–8.4
Alkalinity
8–10 dKH
Diet
Carnivore
- Mysis shrimp
- Brine shrimp
FAQ
What is the ideal water temperature for the Chalk Basslet?
The ideal water temperature ranges from 24–27°C (75–81°F).
Does the Chalk Basslet require specific lighting conditions?
It adapts well to low to moderate lighting and performs well under all standard reef lighting setups.
What kind of habitat does the Chalk Basslet prefer in an aquarium?
It prefers mid to lower reef areas with rockwork, caves, and crevices, though it also swims freely in open water.
Tim Gray –
The Chalk Basslet is a beautiful addition to my reef tank. Its lavender body and yellow stripes stand out well. It’s active but not aggressive and enjoys moving around in the rockwork. I feed it mysis and brine shrimp regularly, and it eats well. Easy to maintain and adds a lot of visual interest.
Zoe Campbell –
I’ve had this basslet for three months now and it’s thriving. It’s calm, colorful, and active without being too demanding. The lighting in my tank is moderate, and it adapts perfectly. I appreciate how it fits into the mid to lower reef zone without disturbing other fish.
Faith Morgan –
The colors are vibrant and it’s a peaceful fish. It does like to dart around, especially near the rock crevices. I feed it mysis shrimp daily and it seems to enjoy it. A good choice for a beginner reef keeper looking for a colorful, non-aggressive species.