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Fish

Chalk bass

Serranus tortugarum
French name : Serran des Tortugas

The chalk bass is a small sea bass in the family Serranidae, native to the western Atlantic and Caribbean. It has an orange to reddish-brown body overlaid with iridescent blue lines and spots along the flanks, giving it subtle but attractive coloration. Unlike many basses it is relatively peaceful and, unusually, can be kept in groups if introduced together, where they shoal loosely. It is hardy and adapts well to aquarium life. It is well suited to reef and fish-only aquariums with rockwork for shelter and a secure lid, as it may jump when startled. It is a hardy carnivore that eagerly takes meaty foods such as mysis and chopped seafood, though it may eat very small shrimp or fish. Its durability and calm nature make it a good choice for newer marine keepers.

Water
Marine
Origin
Western Atlantic and Caribbean
Adult size
8 cm
Diet
Carnivore
Temperament
Peaceful
Difficulty
Beginner
Chalk bass (Serranus tortugarum)
Illustration

Water parameters

Temperature22 – 27 °C
pH8 – 8.4
Carbonate hardness (KH)7 – 12 °dKH
Salinity33 – 35 SG

Tank & stocking

Minimum tank volume100 L
Volume budget per individual 30 L — adds up with tank-mates

“Minimum tank volume” is a reasonable floor, not an absolute limit. The per-individual budget is used by the Aqua app to estimate how heavily a tank is stocked.

Frequently asked questions

What size aquarium does Chalk bass need?

Provide at least 100 litres to keep Chalk bass in good conditions.

What water parameters does Chalk bass need?

A temperature of 22–27 °C, pH 8–8.4, saltwater.

Is Chalk bass peaceful or aggressive?

Its temperament is peaceful.

What does Chalk bass eat?

Its diet: carnivore.

How big does Chalk bass get?

Around 8 cm as an adult.

Is Chalk bass suitable for beginners?

Care level: beginner.

Planning a tank with Chalk bass?

AquaTender turns these parameters into live advice: it checks whether your tank is big enough, how heavily it's stocked, and whether your fish are compatible — then tracks water tests, photos and maintenance for you.

➕ Add Chalk bass to my tank Discover AquaTender
« Add to my tank » opens AquaTender — sign in (free) and pick your aquarium.

Fish from the same biotope

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