The Chocolate Chip Starfish is a highly recognizable ornamental sea star that has always had instant appeal within the saltwater aquarium community. Chocolate Chip Starfish are opportunistic eaters which means they will eat detritus, sponges, shellfish, clams, and decaying animal and plant matter. For this reason these starfish are not reef safe and should only be kept in FOWLR saltwater aquariums only. They should be kept in larger saltwater aquariums with mild tempered fish. You should avoid housing them with predatory fish such as triggers and puffers as they are slow moving and can easily become a meal. Similar to other invertebrates, Chocolate Chip Starfish do not tolerate copper, high levels of nitrates or parameter swings in an aquarium.
Note: Chocolate chip starfish are not reef safe as they will eat most coral and eventually invertabrates.
The chocolate chip starfish (Protoreaster nodosus) is a striking and hardy sea star, easily recognized by the raised, dark “chocolate chip” nodules along its arms. These starfish are excellent scavengers, feeding on detritus, uneaten food, and decaying organic matter in fish-only and FOWLR (Fish Only With Live Rock) aquariums.However, chocolate chip starfish are not reef-safe, as they may consume corals, sponges, and other sessile invertebrates. They are best suited for larger, well-established aquariums with non-aggressive fish.
Care Level: Easy to Moderate – Hardy but sensitive to water quality changesMinimum Tank Size: 50+ gallonsAquarium Setup: Prefers sandy substrates and live rock for foragingChocolate chip starfish require stable salinity and a well-established aquarium with plenty of natural food sources. They should not be exposed to sudden parameter shifts, as they are sensitive to environmental changes.
Chocolate chip starfish are opportunistic scavengers, consuming a variety of foods found in the aquarium.Diet: Omnivorous – Prefers meaty foods, detritus, and algaeRecommended Foods:Chopped shrimp, squid, and fishFrozen or fresh marine meaty foodsAlgae wafers and sinking pellets (for supplemental feeding)They should be target-fed regularly to ensure they receive adequate nutrition, especially in tanks with limited natural food availability.
Lifespan: 5-10 yearsGrowth Rate: Slow – Can grow up to 12 inches in large aquariumsWith proper care and stable
, chocolate chip starfish can live for several years and grow to a substantial size.
Temperament: Peaceful – Does not interact with or harm fishReef Safe? No – Will consume corals, sponges, and other sessile invertebratesAvoid housing with aggressive fish like puffers or triggers, which may nip at their tube feet and soft tissue.
Not Reef-Safe: Will prey on corals, sponges, and small invertebrates.Sensitive to Salinity Changes: Requires stable
and slow acclimation.May Require Supplemental Feeding: If food is scarce, regular target feeding is necessary.For best results, maintain stable water parameters and provide a well-balanced diet.
Temperature: 74-80°FdKH (Alkalinity): 8-12pH: 8.1-8.4Specific Gravity: 1.024-1.026
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