Blue Eye Royal Dottyback

Pictichromis dinar

Saltwater Fish Species Group: Dottybacks Family: Pseudochromidae

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Water parameters

Temp 76-80 F Temperature

Maintaining a stable and appropriate temperature is critical for the survival of aquatic life.

pH 7.8 - 8.4 potential of Hydrogen

Measuring the acidity or alkalinity of water on a 0–14 scale, where 7 is neutral, 7 is alkaline.

NO3 1-20 ppm Nitrate

While less toxic than ammonia, high nitrate levels (above 40–80 ppm) are important to monitor because they can cause fish stress, stunted growth, and harmful algae blooms.

NO2 <0.0001 ppm Nitrite

It is a highly toxic, intermediate compound in the nitrogen cycle produced from broken-down ammonia

PO4 0.01 - 0.1 ppm Phosphate

It is essential for plant development but must be managed, as excess levels trigger nuisance algae blooms and inhibit coral calcification.

NH3 <0.1 ppm Ammonia

It is the primary killer of aquarium fish, causing gill damage, stress, and death

Ca 380 - 450 ppm Calcium

Supporting the growth, skeletal structure, and shell formation of corals, mollusks, crustaceans, and coralline algae

KH 8 - 12 dKH Alkalinity

It acts as a shield, neutralizing acids to prevent dangerous pH "crashes" that can harm fish, corals, and plants.

Mg 1200 - 1400 ppm Magnesium

It enables coral growth by supporting skeletal formation, assists in metabolic processes, and ensures that calcium is available for corals, clams, and coralline algae.

SG 1.023 - 1.026 SG Salinity

Essential for maintaining stable, natural water parameters, proper osmoregulation, and stress-free environments for marine fish and corals

ORP 250 - 400 mV Oxidation-Reduction Potential

A higher positive mV indicates clean, oxygen-rich water with high water quality, while low readings indicate high pollution.

About Blue Eye Royal Dottyback

General information

At first glance, it is almost indistinguishable from the commonly available Royal Dottyback (Pictichromis paccagnellae). However, upon closer examination, you can see distinguishing features unique to the Blue Eye Royal Dottyback. Beginning with the namesake feature, the eye of this newly described species is a beautiful blue compared to the purplish eye of the familiar Royal Dottyback. However, the more identifiable physical feature is the distinct, lyre-shaped tail of the Blue Eye Royal Dottyback. Both the top and bottom margins of the caudal fin extend to form a classic lyre-shaped tail. Though less obvious than the signature lyretail, the color margin between the magnificent maroon anterior and brilliant yellow posterior of the Blue Eye Royal Dottyback features a transitional band of color. The ideal setup should be aquascaped well with live rock to provide an ample selection of crevices and caves the Blue Eye Royal Dottyback can claim and defend. This hardy fish may demonstrate aggressive territorial behavior towards conspecifics and is best housed singly with the exception in the largest of home aquariums. In general, the spirited Blue Eye Royal Dottyback has an energetic personality and will not be easily intimidated by other fish even two to three times its size. Similar to the Royal Dottyback, it may also eat ornamental shrimp and is a predator of nuisance bristle worms.

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