Description

Ruby Anthias – Paranthias colonus

Overview:
The Ruby Anthias is a stunning and active marine fish, featuring deep red to ruby-colored body tones with subtle iridescent highlights. Known for their mid-water schooling behavior, they add movement, vibrancy, and elegance to reef aquariums.

Origin:
Native to the Western Atlantic and Caribbean, typically found around coral reefs and drop-offs, where they form small to medium-sized schools.

Feeding:
Planktivorous – feeds on zooplankton and small meaty foods. In captivity, provide frequent feedings of mysis shrimp, brine shrimp, and finely chopped seafood.

Tank Mates:
Best kept with peaceful reef fish. Compatible with other anthias, small schooling fish, and reef-safe species.

Aggression:
Non-aggressive – thrives in groups, displaying natural schooling behavior.

Experience Level:
Intermediate – requires a well-established aquarium with stable water conditions and regular feedings.

Water Parameters:

Temperature: 72–78°F (22–26°C)
pH: 8.1–8.4
Salinity: 1.020–1.025
Minimum Tank Size: 75+ gallons

The Ruby Anthias is a vibrant, social, and active species, perfect for reef aquarists seeking a striking red mid-water fish to enhance the color and activity of their marine tank.