Commersons Frogfish
Antennarius commerson
Saltwater Fish
Species Group: Anglers and Frogfish
Family: Frogfish
Log in or create an account to add this species to your tanks.
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 Commersons Frogfish
General information
Commerson's Frogfish is a fascinating saltwater species that is popular in the aquarium hobby. They are known for their unique appearance, which includes a stocky body, a large mouth, and a wide variety of colors and patterns. On average, they grow up to 8 inches in length, making them a relatively large frogfish species. In captivity, they require a minimum tank size of 50 gallons and a sand substrate to allow them to bury themselves when they feel threatened.
Diet & nutrition
Commerson's Frogfish are carnivores, feeding on a variety of small fish, crustaceans, and invertebrates in the wild. In captivity, they can be fed a diet of frozen or live shrimp, krill, and other small crustaceans. It is important to feed them a varied diet to ensure they receive all the necessary nutrients.
Determining sex
It can be difficult to determine the sex of Commerson's Frogfish, as there are no external differences between males and females. However, males are typically slightly larger than females and may have a more elongated body shape.
Breeding & spawning
Breeding Commerson's Frogfish in captivity is difficult, and there is little information available about their breeding habits. In the wild, they are known to lay their eggs on the seafloor or attach them to objects such as sponges.
Diseases
Commerson's Frogfish are relatively hardy and not prone to many diseases if kept in good water quality. However, they can be susceptible to bacterial infections and parasites if their environment is not properly maintained.
Origination
Commerson's Frogfish is native to the Indo-Pacific region, including the coasts of East Africa, the Red Sea, and the islands of the western Pacific Ocean.
Cautions
Commerson's Frogfish has a voracious appetite and will eat any small fish that can fit in its mouth. Therefore, it should only be kept with larger, non-aggressive tankmates.
Acclimation process
It is important to properly acclimate Commerson's Frogfish to their new environment to reduce stress and prevent disease. This can be done by slowly adding small amounts of water from the aquarium to the bag or container they were transported in over a period of several hours.
All photos
Tap a photo to open the gallery viewer.