This Royal Gramma data sheet gives you basic information about the common names, scientific names and water parameters required by this species. In addition, you can find Royal Gramma information such as diet, determining sex, breeding, distribution and compatibility. - because there's always time for reefing.
Royal Gramma (Gramma loreto)


Scientific Name: Gramma loreto


Alt Scientific Name:


Common Name: Royal Gramma


Alt Common Name: Fairy Basslet


Group: Grammas and Basslets (Grammas/Basslets)


Family: Grammatidae


Distribution: West Atlantic


Adult Size: 3 inches (7.6cm)


Minimum Tank Size: 20 gallons


Temperament: Peaceful; These fish are excellent community tank fish, tending to stay to themselves.


Care Difficulty: 3/10

Very Easy
Very Difficult


Reef Safety Score : 3/3

Not Safe
High Risk
Low Risk
Reef Safe


Temperature Range: 72°F - 81°F



pH Range: 8.1 - 8.4



Salinity Range (specific gravity): 1.022 - 1.026



Diet Information: Enjoys brine shrimp or other meaty foods. WIll often accept flake or pellet foods.


Additional Information : The Royal Gramma is magenta or purple on the front portion of the body, and yellow on the rear portion. it is a hardy, relatively nonaggressive aquarium fish. It will defend a preferred hiding place from intrusion. An ideal fish for the reef aquarium, this durable fish typically does great in any well maintained aquarium. Grammas can be kept in groups in the aquarium, but they should not be overcrowded and should be of varying sizes. Placing one larger fish and several small fish in an aquarium your increasing the chances that you will acquire only one male and several females.


Tank Mate Compatibility : Care should be noted if placing more than one of the same species, or any fish in the Pseudchromis and Basslet family aggression has been noted. If two are desired, known mated pairs are best otherwise a 6ft system is suggested. Also, given the small size of this species, predatory or larger carnivorous fish will likely eat it.


Breeding Information: Pairs are hard to find, but once you have a pair they will readily spawn in aquariums. They require a small cave in which to spawn. When they are ready to spawn they will clean out the caves, line the bottom with Caulerpa and use coral rubble to cover most of the entrance to the cave. Rearing the fry will require rotifers as a starting food followed by brineshrimp.


Determining Sex: There is no known visible difference between the males and females.


Primary Area in Tank: Stays near rocks.



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