Three Stripe Damselfish
Dascyllus aruanus
Saltwater Fish
Species Group: Damsel
Family: Pomacentridae
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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 Three Stripe Damselfish
General information
The 3 Stripe Damsel is indigenous to Indo-West Pacific and its geographical range stretches from East African and the Red Sea to the line. They are known to occur over staghorn Acropora thickets in large groups as well as in smaller groups over individual coral heads. During its juvenile stage, the 3 Stripe Damsel lives together with sea anemones but they lose this feature as they grow up into mature adult fish. The 3 Stripe Damsel is white in color which is adorned with three black bars. Not only this, the 3 Stripe Damsel also features a large brown spot which is located in the dorsal part of the snout. Its pelvic fins are black and caudal fin is pale, and the pectoral fins are translucent. Due to its ease of care, the 3 Stripe Damsel is a great choice for novice aquarists. As it matures, it might turn territorial. You can prevent this to happen by introducing this fish as the last fish so that it can be acclimated to the environment and do not harm others. Nevertheless, if they are introduced first they might not allow any other inhabitants to stay longer in the tank. It is recommended to provide your tank with live rocks. These rocks are meant to be used as hiding places for not only the damsels but also for other inhabitants. The young 3 Stripe Damsel will basically live around the live rocks as a good hiding spot.
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