Randalls Anthias
Pseudanthias randalli
Saltwater Fish
Species Group: Anthias
Family: Serranidae
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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 Randalls Anthias
General information
Randalls Anthias are a popular and colorful saltwater aquarium fish. They are small in size, reaching up to 4 inches (10 cm) in length. They are peaceful fish that can be kept in groups of one male to several females. These fish are easy to care for and have a good lifespan of up to 5 years.
Diet & nutrition
Randalls Anthias are carnivorous and require a varied diet that includes meaty foods such as frozen mysis shrimp, krill, and other small crustaceans. They can also be fed small amounts of high-quality flake or pellet food, but these should not be their primary diet.
Determining sex
Male Randalls Anthias have a more elongated dorsal fin and a more pronounced coloration than females. Males also have more pointed ventral fins.
Breeding & spawning
Randalls Anthias are not commonly bred in captivity. They are pelagic spawners and release their eggs into the water column. The eggs then hatch into larvae, which require specialized food and care.
Diseases
Randalls Anthias are generally hardy and resistant to disease, but like all saltwater fish, they can be susceptible to ich and other common aquarium diseases. Proper water quality and regular monitoring can help prevent disease outbreaks.
Origination
Randalls Anthias are found in the Western Pacific, specifically around Japan and the Philippines.
Cautions
Randalls Anthias are generally peaceful, but males can become aggressive towards other males or similarly shaped fish.
Acclimation process
When introducing Randalls Anthias to a new aquarium, it is important to acclimate them slowly to avoid stress and shock. Float the bag containing the fish in the aquarium water for about 20 minutes to allow the water temperatures to equalize. Then, open the bag and add small amounts of aquarium water to the bag every 5-10 minutes. After about 30-40 minutes, the fish should be ready to be released into the aquarium.
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