Arc Eye Hawkfish
Paracirrhitus arcuatus
Saltwater Fish
Species Group: Hawkfish
Family: Cirrhitidae
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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 HydrogenMeasuring the acidity or alkalinity of water on a 0–14 scale, where 7 is neutral, 7 is alkaline.
NO3 1-20 ppm NitrateWhile 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 NitriteIt is a highly toxic, intermediate compound in the nitrogen cycle produced from broken-down ammonia
PO4 0.01 - 0.1 ppm PhosphateIt is essential for plant development but must be managed, as excess levels trigger nuisance algae blooms and inhibit coral calcification.
NH3 <0.1 ppm AmmoniaIt is the primary killer of aquarium fish, causing gill damage, stress, and death
Ca 380 - 450 ppm CalciumSupporting the growth, skeletal structure, and shell formation of corals, mollusks, crustaceans, and coralline algae
KH 8 - 12 dKH AlkalinityIt acts as a shield, neutralizing acids to prevent dangerous pH "crashes" that can harm fish, corals, and plants.
Mg 1200 - 1400 ppm MagnesiumIt 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 SalinityEssential for maintaining stable, natural water parameters, proper osmoregulation, and stress-free environments for marine fish and corals
ORP 250 - 400 mV Oxidation-Reduction PotentialA higher positive mV indicates clean, oxygen-rich water with high water quality, while low readings indicate high pollution.
About Arc Eye Hawkfish
General information
The Arc Eye Hawkfish has horseshoe-shaped mark behind the eye, which makes it a most beautiful fish in a tank. It lacks swim bladder that spends most of its time perching on corals or watching prey. The Arc Eye Hawkfish should be the last fish introduced into the tank community. It becomes territorial and will harass new additions to the tank including other hawkfish and larger fish. The Arc Eye Hawkfish is not that safe to keep in a reef tank since it eats up crabs, shrimp, anemones, and smaller fish. It forms territorial harems, with one male defending a territory with multiple females and juveniles. Medium sized tanks provide a good environment for these fishes. When threatened, the Arc Eye Hawkfish takes shelter between the branches of the stony corals on which it perches. Juveniles live in small heads of coral, often within the boundaries of male territories. The diet should mainly consist of a variety of marine meats and live feeder shrimp. The Arc Eye Hawkfish is easy to care that makes it a good fish for a beginner aquarist.
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