Chinstrap Jawfish
Opistognathus sp
Saltwater Fish
Species Group: Jawfish
Family: Opistognathidae
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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 Chinstrap Jawfish
General information
The Chinstrap Jawfish has a similar in appearance to Opistognathus scops. However, the Chinstrap Jawfish is distinguished by large, coarser mottling where the white spots take on a decorative and attractive snowflake pattern. The Chinstrap Jawfish features a prominent ocellus at the front of the dorsal fin and an ocular band that extends down to its chin that gives it its common name. The Chinstrap Jawfish should be kept in a medium or larger aquarium with docile tankmates and at least 3 to 4 inches of mixed substrate for burrowing. A supply of broken coral branches, clam or snail shells, and assorted pieces of rubble will be eagerly welcomed as essential den-building materials. Jawfish display territorial aggression towards others of their own species, so only one specimen, or a mated pair, should be kept per tank. Multiple Chinstrap Jawfish may be kept if they are housed together in a large enough tank where each Chinstrap Jawfish can comfortably establish their own territories. Similar to other Jawfish, an aquarium with a tight-fitting lid is required to prevent potential escape.
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