Bicolor Parrotfish

Cetoscarus bicolor

Saltwater Fish Species Group: Parrotfish Family: Scaridae

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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 Bicolor Parrotfish

General information

The Bicolor Parrotfish the younger Bicolor Parrotfish is white in color with a thin stripe of orange across the face. It features orange caudal fins as well as dorsal fins that make a stunning and captivating fish in any tank. And, as the Bicolor Parrotfish grows its color changes from white to blue, and stripes get transformed to spots along with the fins in additional hues. It is named appropriately as the Bicolor Parrotfish, due to the presence of joined teeth that forms a beak shape giving a resemblance to a parrot's beak. Although it is peaceful species, its care level is quite difficult to achieve in captivity. Since the Bicolor Parrotfish can grow relatively larger in size, it must be kept in a medium sized tank as a juvenile. As an adult will require a large size tank. It constantly grazes for food. The Bicolor Parrotfish grows up to 30 inches in length in the wild but is typically imported at 2-4 inches. Since the Bicolor Parrotfish is not a deep swimmer in wild, it needs a brightly lit aquarium. Also, the aquarium should comprise plenty of live coral or rock, and plants at the bottom of it to simulate their natural habitat.

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