Expert Only

Sea Apple

Pseudocolochirus violaceus


(1 Reviews)

Sea Apple

Expert Only

Sea Apple

Pseudocolochirus violaceus


(1 Reviews)

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With $199.00 or more in Marine Life.
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Sea Apple Care Facts

Care Level: Expert
Temperament: Peaceful
Diet: Filter Feeder
Reef Safe: Yes
Minimum Tank Size: 5 Gallons
Max Size: 8 inches
The Sea Apple, Pseudocolochirus violaceus, is also known as the Violet Sea Apple, Violet Sea Cucumber, and Violet Sea Urchin. It should only be cared for by an experienced aquarist as it can release a potent toxin when stressed or injured that can affect other species in the tank - it should also be handled with caution. It must be introduced into a well-established tank with plenty of space to move around, a moderate waterflow, live rock and a sandy substrate, and copepods to feed on. They are sensitive to light and water quality fluctuations as well as predators that may pick on it. 
The Sea Apple should be fed liquid foods of brine shrimp, grated mussel, or other carnivorous preparations at least three times per week.  If you notice an oily residue on the surface of the acclimation container, find cucumber floating on top of the water, any cloudiness in the bag, or note that the acclimation water is very discolored do not add cucumber or acclimation water to the aquarium. It is important to be cautious in caring for the Sea Apple as it can have adverse effects if done improperly. 


Discover the Fascinating Sea Apple (Pseudocolochirus violaceus) for Your Saltwater Marine Aquarium

Delve into the intriguing world of the Sea Apple (Pseudocolochirus violaceus), an extraordinary addition to your saltwater marine aquarium. This factual guide provides valuable insights into the Sea Apple's habitat, compatibility, care requirements, potential dangers, and why Saltwaterfish.com is your trusted source for these remarkable marine organisms.

Habitat and Adaptability of Sea Apples

Sea Apples are naturally found in the Indo-Pacific region, inhabiting coral reefs and rocky substrates. Their vivid colors and graceful movements make them captivating additions to your aquatic environment. While they are adaptable to various water conditions, caring for Sea Apples requires meticulous attention.

Reef Safe and Compatibility of Sea Apples

Sea Apples are typically considered reef-safe, as they do not harm corals or other invertebrates. However, they are sensitive to changes in water quality and can be negatively affected by some tank mates. Careful consideration of their compatibility is essential.

Size and Lifespan of the Sea Apple

Sea Apples can grow quite large, with some individuals reaching lengths up to 10 inches. They can have a lifespan of several years with proper care, making them long-term residents of your marine aquarium.

Diet and Feeding Habits of Sea Apples

These filter-feeding echinoderms primarily feed on planktonic organisms and small particulate matter in the water column. Maintaining a stable population of beneficial microorganisms in your tank is crucial to ensure a consistent food source for Sea Apples.

Compatibility of Sea Apples With Other Aquarium Life

Sea Apples are generally peaceful creatures. However, they can release toxins if stressed or injured, making them incompatible with certain tank mates. Caution is necessary when selecting companions for Sea Apples.

Dangers of Having a Sea Apple in Your Aquarium

Sea Apples possess potent toxins as a natural defense mechanism. These toxins can be released into the water if the Sea Apple is stressed, injured, or dies. In a closed aquarium system, such toxin release can have detrimental effects, potentially harming or even killing tank inhabitants. Therefore, it's crucial to handle Sea Apples with care and ensure stable tank conditions to minimize stress. Sea Apples should only be purchased by an expert-level aquarist.

Suitable Tank Mates for the Sea Apple

Choosing appropriate tank mates for Sea Apples is essential to avoid stress and potential toxin release. Compatible tank mates include peaceful fish species, non-aggressive invertebrates, and corals that do not threaten the Sea Apple. Avoid housing them with aggressive or large, predatory species.

Tank Requirements and Aquascaping That Are Ideal for Sea Apples

To provide an ideal habitat for your Sea Apple, you'll need a well-established marine aquarium with a minimum size of 5 gallons. Incorporate live rock structures and ample hiding places, as Sea Apples prefer shaded areas where they can graze on microorganisms.

Optimal Water Conditions for the Sea Apple

Maintaining precise water conditions is crucial for the health of your Sea Apple:

  • pH Level: Maintain a stable pH level of 8.0 to 8.4.
  • Salinity: Keep the salinity of your aquarium water within the range of 1.024 to 1.026 specific gravity or approximately 32-35 ppt.
  • Water Temperature: Maintain a water temperature between 74°F to 78°F (23°C to 26°C).
  • Lighting Requirements: Moderate to high-intensity lighting suits most marine aquariums, although Sea Apples can thrive in dimly lit areas.
  • Water Flow: Ensure a gentle water flow within the tank to prevent sediment buildup and promote the circulation of food particles.

Why Choose Saltwaterfish.com for the Sea Apple

Selecting Sea Apples for your marine aquarium is a unique choice, and sourcing them from Saltwaterfish.com ensures a reliable and informed experience. Our commitment to sustainable practices and responsible sourcing guarantees you receive robust and well-maintained Sea Apples that contribute to the vibrancy and balance of your marine ecosystem. With our expertise and diverse selection, you can confidently enhance your aquarium with these captivating marine organisms.

From their striking appearance to their compatibility with suitable tank mates, these organisms promise to be a captivating addition. When you choose Saltwaterfish.com, you're not just acquiring marine organisms—you're investing in the vitality and beauty of your aquarium.


Expert Only: Items designated as expert only require special care such as a species specific environment, special diet or care, and an expert level, experienced aquarist. Not for beginners. Expert Only items qualify for our live arrival guarantee only, and are exempt from our extended 8 day guarantee.

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Reviewed by: Joe Kirk on Feb. 24, 2023

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