Feedbook/Fish

Royal gramma

Gramma loreto

Side portrait of a royal gramma: purple forward, yellow aft

Essential gear

  • Mature reef rock system
  • Cave hardscape
  • Refractometer / salinity meter
  • Powerhead / wavemaker
  • Marine fish food

Lifespan

5–8years

Water temperature

24–27°C

Salinity

1.023–1.026SG

Water column

Lower-mid level

Hangs from cave ceilings; uses rock crevices to come and go

Keep in groups

Usually kept alone

Same-species territorial disputes

Diet

Carnivore

Pellets, brine shrimp, frozen plankton

Suggested habitat

Lower–mid reef with upside-down caves. Do not blast the entrance; leave a quiet retreat so fish will show by day.

Plates are husbandry references—not build plans or generator parameters. Check your own water, vessel, and stocking before you act.