Basslets

6 Colorful saltwater basslets for sale, including cave-oriented reef fish for suitable community aquariums.
Shop saltwater basslets for sale, including Royal Gramma and other compact, colorful fish for suitable reef and community aquariums. Review current listings for the exact species, size, price, and availability.Basslets commonly stay close to caves and ledge... Read more Show less

Shop saltwater basslets for sale, including Royal Gramma and other compact, colorful fish for suitable reef and community aquariums. Review current listings for the exact species, size, price, and availability.

Basslets commonly stay close to caves and ledges, but territorial behavior and adult size differ by species. Compare all saltwater fish and browse the fish species glossary for detailed profiles.

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  • Chalk Basslet

    Chalk Basslet

    Chalk Basslet

    $58.99
    Sale price  $58.99 Regular price 

    Almost WYSIWYG Fish

    Serranus tortugarum

    Care Level Easy
    Temper­ament Semi-Aggressive
    Reef Safe Yes
    Diet Carnivore
    Tank Size 30 gallons
    Max Size 3 inches
  • Barred Serrano

    Barred Serrano

    Barred Serrano

    $164.99
    Sale price  $164.99 Regular price  $54.99

    Almost WYSIWYG Fish

    Serranus psittacinus

    Care Level Moderate
    Temper­ament Semi-aggressive
    Reef Safe With Caution
    Diet Carnivore
    Tank Size 55
    Max Size 7 inches
  • Lantern Basslet - Serranus Baldwini

    Lantern Basslet - Serranus Baldwini

    Lantern Basslet - Serranus Baldwini

    $47.99
    Sale price  $47.99 Regular price  $18.99

    Almost WYSIWYG Fish

    Serranus baldwini

    Care Level Easy
    Temper­ament Peaceful
    Reef Safe Yes
    Diet Carnivore
    Tank Size 30 gallons
    Max Size 3 inches
  • Yellow Assessor - Aussie

    Yellow Assessor - Aussie

    Yellow Assessor - Aussie

    $143.99
    Sale price  $143.99 Regular price 

    Almost WYSIWYG Fish

    Assessor flavissimus

    Care Level Moderate
    Temper­ament Peaceful
    Reef Safe Yes
    Diet Carnivore
    Tank Size 30 gallons
    Max Size 3 inches
  • Black Cap Basslet

    Black Cap Basslet

    Black Cap Basslet

    $134.99
    Sale price  $134.99 Regular price 

    Almost WYSIWYG Fish

    Gramma melacara

    Care Level Easy
    Temper­ament Peaceful
    Reef Safe Yes
    Diet Carnivore
    Tank Size 40 gallons
    Max Size 4 inches
  • Harlequin Basslet

    Harlequin Basslet

    Harlequin Basslet

    $34.99
    Sale price  $34.99 Regular price 

    Almost WYSIWYG Fish

    Care Level Easy
    Temper­ament Semi-Aggressive
    Reef Safe No
    Diet Carnivore
    Tank Size 30 gallons
    Max Size 3 inches

Answers

Are basslets reef safe?
Many commonly kept basslets are considered coral safe and work well in reef aquariums. They may eat very small ornamental crustaceans if those animals fit in the mouth. Check the exact species and provide secure rockwork with caves and overhangs.
Can two basslets live together?
It depends on species, aquarium size, and territory. Similar basslets can fight over caves, especially in small systems. Unless a compatible pair is established, the safer approach is often one basslet per territory with dissimilar tankmates.
What do basslets eat?
Most aquarium basslets accept small marine pellets and varied frozen foods such as mysis or finely chopped preparations. Offer portions sized for the fish and make sure faster tankmates do not prevent it from feeding near its shelter.
Do basslets need a lid?
A secure lid is recommended. Basslets can dart or jump when startled, during territorial disputes, or after lights change. Close openings around cords and plumbing rather than relying on a partial cover.

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More info and buying tips

Habitat and aquarium setup

Basslets often use caves, overhangs, and shaded rockwork as home territories. Build stable shelter before introduction while preserving open routes to feeding areas. A secure lid is useful because startled fish can jump.

Match the aquarium to the adult size and temperament of the exact species. Compact size does not always mean that two similar basslets will share a small tank peacefully, especially when they compete for the same cave.

Feeding and community compatibility

Offer varied, appropriately sized marine foods such as quality pellets and frozen preparations. Feed near the fish’s shelter at first so faster tankmates do not take every meal, then confirm that the basslet maintains a full body profile.

Many basslets coexist well with dissimilar peaceful fish, but closely related or similarly colored species may trigger territorial behavior. Introduce with a complete stocking plan and provide more than one usable retreat area.

Acclimation and ongoing care

Use stable, mature saltwater with dependable filtration and oxygenation. Quarantine when possible and watch for rapid breathing, refusal to eat, frayed fins, or a fish remaining hidden because of harassment.

Keep salinity and temperature stable, maintain regular water-quality testing, and avoid repeatedly rearranging the basslet’s shelter. Most problems are easier to prevent through compatible stocking and consistent feeding than to correct after territories are established.

Related aquarium collections

Continue planning your aquarium with All saltwater fish, Fish species glossary, Dottybacks, and Gobies.