Gramma loreto
Source: - Kasper Hareskov Tygesen
Gramma loreto
Source: Kasper Hareskov Tygesen
Gramma loreto
Gramma loreto
Gramma loreto
Source: - Kasper Hareskov Tygesen


Latin name Gramma loreto - Poey, 1868
Common name Royal Gramma Basslet
Family Grammatidae - Gramma
Origin The Mexican Golf, West Atlantic
Max length 8.0 cm (3.1")

As aquarium fish

Minimum volume 100 l (26 gal)
Hardiness Hardy
Suitable for aquarium Suitable for most aquarium
Reef safe Always reef safe
Aggressiveness Docile but might be aggressive towards similar species of same gender


  • Zooplankton (Cyclops, pods...)
  • Small crustaceans (Krill, mysis, artemia...)

Jumps out of open aquaria

This species is known to jump out of open aquaria.

Requires a varied diet

This species must be fed with an appropriately varied diet.

Hiding places

This species requires places to hide, especially when newly introduced into the aquarium.

Bred in captivity

This species can be bred in captivity, one can therefore consider asking your local fish store for a captive bred specimen.


This species is very shy and docile, so one should be careful when keeping it with more aggressive fish.

Number of fish

This species can live with many of its own kind, when provided with enough space.

Family description (Grammatidae)

Basslets (Grammaer) are suitable for most aquaria, as they are a relatively easy and peaceful fish.
They are similar to Dottybacks (Pseudochromidae) in appearance and colour, but are more gentle and therefore a good alternative.

Basslets will always stay hidden if kept together with aggressive Wrasses, for example.
They like vertical rocks with many hiding spots, as it resembles their natural habitat. 

Several Basslets can be kept together, but not without risk. One must be ready to separate them, as they sometimes fight by locking jaws.
It can be an advantage to have different sized fish, as this increases the chance of having both males and females. They also require a spacious tank to be able to live together >65 gal (300 liters)


Aquarium trade Yes
Distribution Western Central Atlantic: Bermuda, Bahamas, and Central America to northern South America.
English common names Fairy basslet
Danish common names Konge-febars
German common names Feenbarsch
Spanish common names Loreto, Merito rabirrubio

References and further reading

About references

Scott W. Michael. 2001. Basslets, Dottybacks & Hawkfishes: v. 2 (Reef Fishes) - TFH Publications / Microcosm Ltd. - (English)
Scott W. Michael. Reef Basslets & Grammas - Part 2 - Live Aquaria - (English)
Henry C. Schultz. 2002. Grammas - Reefkeeping Magazine - (English)
Bob Fenner. The Basslets that We Call Grammas, Family Grammatidae - Wet Web Media - (English)

Froese, R. and D. Pauly. Editors. 2014. FishBase. World Wide Web electronic publication., version (08/2014).


docile shy, shoal group
Just a moment...
Just a moment...