Spotnape Cardinal
Apogon notatus
Saltwater Fish
Species Group: Cardinalfish
Family: Apogonidae
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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 Spotnape Cardinal
General information
The Spotnape Cardinalfish is a small, peaceful species that can be kept in a home aquarium. They typically grow up to 3 inches in length and have a silver body with red and black spots on the head and dorsal fin. They are active swimmers and prefer to live in groups of at least 6 individuals.
Diet & nutrition
In the wild, Spotnape Cardinalfish feed on small crustaceans and zooplankton. In captivity, they can be fed a variety of meaty foods such as brine shrimp, krill, and chopped fish. It's recommended to feed them small amounts several times a day rather than one large feeding.
Determining sex
Male and female Spotnape Cardinalfish look similar and it can be difficult to determine their sex. However, during the breeding season, males will exhibit more vibrant colors and may be slightly larger than females.
Breeding & spawning
Spotnape Cardinalfish are egg layers and can be bred in a home aquarium. They typically spawn in pairs or small groups and will lay their eggs on the underside of rocks or other structures. Once hatched, the fry can be fed small live foods such as rotifers and brine shrimp.
Diseases
Spotnape Cardinalfish are generally hardy and not prone to many diseases. However, they can be susceptible to common marine fish diseases such as ich and velvet. It's important to quarantine new fish before introducing them to an established aquarium to prevent the spread of disease.
Origination
The Spotnape Cardinalfish is native to the Indo-Pacific region, including the Red Sea, East Africa, and the Hawaiian Islands.
Cautions
While the Spotnape Cardinalfish is generally peaceful and can be kept with other small, non-aggressive species, they may be territorial towards other Cardinalfish. It's important to provide plenty of hiding places and space for multiple individuals in a home aquarium.
Acclimation process
When introducing Spotnape Cardinalfish to a new aquarium, it's important to acclimate them slowly to prevent shock and stress. The drip acclimation method is recommended, where water from the aquarium is slowly dripped into the bag containing the fish over the course of an hour or more.
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