Live Aquaria:  Quality Aquatic Life Direct To Your Door
Free Shipping!
Home > Marine Invertebrates & Plants > Cucumbers > Sea Cucumber, Black EXPERT ONLY
Sea Cucumber, Black EXPERT ONLY
Please Note: Due to variations within species, your item may not look identical to the image provided. Approximate size range may also vary between individual specimen.
Sea Cucumber, Black EXPERT ONLY (Holothuria atra)
Additional locales and sizes may be available!

Quick Stats

Care Level Expert Only
Temperament Peaceful
Color Form Black
Diet Filter Feeder, Omnivore
Reef Compatible Yes
Water Conditions 72-78° F, dKH 8-12, pH 8.1-8.4, sg 1.023-1.025
Venomous Poisonous When Stressed or Dies
Origin Hawaii
Family Holothuriidae
Waterflow Medium
Compatibility View Chart
What do these Quick Stats mean? Click here for more information


The Black Sea Cucumber, often referred to as the Black Cucumber, Black Sea Urchin, or Lollyfish, has a long black body with a few spots. It was first described as a species back in 1833, and is found in the Indo-Pacific from the Red Sea to Hawaii. It lives in the sandy bottom, often partially covered with sand.

The Black Sea Cucumber needs to be kept with peaceful tank mates. Do not overstock an aquarium with the Black Sea Cucumber. In general, keep only 3 inches of worm for every 20 gallons of water. It is very sensitive to high levels of copper-based medications and will not tolerate high nitrate levels.

It does not have tubules of Culvier, but in the wild, if it is attacked or injured, it will expel its internal organs, which can be toxic to fish. After the Black Sea Cucumber escapes, it will regenerate those organs, although this regeneration rarely occurs in an aquarium setting.

Approximate Purchase Size: Small: 1" to 3"; Medium: 3: to 5"; Large: 5" to 7"

Customer Testimonials

No testimonials have been submitted for this product.

Would you like to submit a testimonial? Click here

Bookmark and Share