International Aquatics
Diadema Dottyback
Diadema Dottyback
🛡️ International Aquatics Quarantine & Guarantee
All fish are checked by marine vets, given a formalin bath, and held for 14 days in copper-treated systems. We feed Selcon-soaked food with Kanaplex and Metroplex during quarantine. Unless marked, all livestock comes with our 15-Day Guarantee. You will receive a video of your fish eating before shipment. For size preference please add a note on your order and we will match your fish to your requested size. If you just want the fish without our QT process, Please email us directly with your order number. Please note this does waive the 15 day guarantee.
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The Diadema Dottyback (Pictichromis diadema) is a semi-aggressive species that is reef-safe, admired for its vibrant magenta and yellow coloration, sleek body, hardy nature, and active behavior. Its brilliant colors make it a popular choice for both beginner and advanced marine aquarists.
Males typically grow slightly larger and may display more vivid coloration and territorial behavior, especially when housed with other dottybacks or similar fish. Females and juveniles tend to be smaller, with more subdued coloration and less aggressive tendencies.
They reach about 3 inches in adult size and should be housed in aquariums of at least 20–30 gallons. Provide plenty of live rock with caves and crevices for hiding and establishing territory, along with moderate open swimming space.
Maintain stable water parameters:
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Salinity: ~1.020–1.025
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Temperature: ~72–79°F
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pH: ~8.1–8.4
A secure lid is essential, as dottybacks are known for jumping, especially when startled.
Diet should consist of mysis shrimp, brine shrimp, copepods, high-quality marine pellets or flakes, and occasionally enriched frozen foods to promote color and health.
With proper care and thoughtful tankmate selection, the Diadema Dottyback makes a vibrant, hardy, and lively addition to reef aquariums—especially those under 40 gallons. However, due to its territorial nature, it is best kept singly unless in a very large tank with plenty of space and cover.
International Aquatics Quarantine & Guarantee: All fish are checked by marine vets, given a formalin bath, and held for 14 days in copper-treated systems. We feed Selcon-soaked food with Kanaplex and Metroplex during quarantine. Unless marked, all livestock comes with our 15-Day Guarantee. You will receive a video of your fish eating before shipment. On request, we also send photos/videos after arrival at IA. Some species are import-to-order (3-10 business days). Many common species are already cleared or near the end of QT.
Several species will be import-to-order and may take anywhere from 3-10 business days to secure. Once your fish is secured, you will be notified, and the quarantine process will then begin.
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