Adding Them to New Aquariums

Immature systems often lack the detritus, biofilm, and microbial populations required to sustain sea cucumbers long term.

Keeping Them in Bare-Bottom Tanks

Without access to substrate and natural feeding areas, Greenfish Sea Cucumbers may struggle to find sufficient nutrition.

Leaving Pumps and Overflows Unprotected

Like many sea cucumbers, they can be injured by powerheads and overflow systems if adequate safeguards are not in place.

Is the Greenfish Sea Cucumber good for cleaning reef tank sand beds?

Yes. Greenfish Sea Cucumbers are excellent natural cleaners that consume detritus, organic waste, bacteria, and biofilm from the substrate. Their constant feeding helps maintain cleaner sand beds and supports a healthier reef environment.

What does a Greenfish Sea Cucumber eat in a marine aquarium?

Greenfish Sea Cucumbers feed on organic matter trapped within the substrate, including detritus, bacteria, biofilm, microalgae, and microscopic organisms. They rely heavily on mature sand beds for long-term nutrition.

Can a Greenfish Sea Cucumber starve in a reef tank?

Yes. In very clean aquariums or tanks with limited substrate, food sources can become depleted over time. Mature aquariums with established sand beds provide the best chance of long-term success.

Why is my Greenfish Sea Cucumber climbing the glass?

Occasional glass climbing is normal and may occur while the cucumber searches for food or explores new areas of the aquarium. Persistent climbing can sometimes indicate insufficient food availability or changing environmental conditions.

Is the Greenfish Sea Cucumber reef safe with corals?

Yes. Greenfish Sea Cucumbers do not consume SPS corals, LPS corals, soft corals, zoanthids, or anemones and are considered fully reef safe.

How old should a reef tank be before adding a Greenfish Sea Cucumber?

Most aquarists recommend waiting at least 6–12 months before introducing a sea cucumber to ensure the aquarium contains sufficient biological maturity and natural food sources.

Sold out

Aquamarine Aquaristic

Greenfish Sea Cucumber （Stichopus chloronotus）

Name: Greenfish Sea Cucumber （Stichopus chloronotus）
Brand: Aquamarine Aquaristic
SKU: 47243115954422
Price: 25.0 AUD
Availability: OutOfStock

$25.00 each

Out of stock

Greenfish Sea Cucumber (Stichopus chloronotus) Description The Greenfish Sea Cucumber is a highly beneficial detritivore prized for its ability to help maintain a clean and healthy substrate in marine aquariums....

Read full description →

Arrive Alive guarantee Replacement or store credit

Door-to-door delivery Australia-wide options

Secure checkout

Description

Greenfish Sea Cucumber (Stichopus chloronotus) Description

The Greenfish Sea Cucumber is a highly beneficial detritivore prized for its ability to help maintain a clean and healthy substrate in marine aquariums. Recognisable by its dark green to black coloration and rows of soft protrusions along its body, this species spends its days slowly moving across the sand bed and rockwork consuming organic waste and biofilm. In the wild, Greenfish Sea Cucumbers play an important role in reef ecosystems by recycling nutrients and processing detritus. Their peaceful nature and constant cleaning activity make them an excellent addition to mature reef aquariums with established sand beds.

Shipping To Tasmania	NO
Shipping To Western Australia	NO

Husbandry

Care guide

Care difficulty

BeginnerModerateExpert

Moderate

Temperament

SkittishPeacefulSemi-agg.Aggressive

Peaceful

Maximum size 30cm

0 cm 35 cm 70 cm

Recommended Stocking

200 litres

Reef safe

Yes

Diet

Detritivore – Greenfish Sea Cucumbers feed on organic detritus, bacteria, biofilm, microalgae, and microscopic organisms found within the substrate and on aquarium surfaces. As they move through the aquarium, they process sand and consume waste trapped within it, helping to maintain a cleaner and healthier environment. Mature aquariums with established sand beds provide the best long-term food source.

Avoid these pitfalls

Common mistakes to avoid

Learn from these common pitfalls when caring for marine livestock.

Immature systems often lack the detritus, biofilm, and microbial populations required to sustain sea cucumbers long term.
Without access to substrate and natural feeding areas, Greenfish Sea Cucumbers may struggle to find sufficient nutrition.
Like many sea cucumbers, they can be injured by powerheads and overflow systems if adequate safeguards are not in place.

Help centre

Frequently asked questions

Find answers to common questions about our products and shipping.

Yes. Greenfish Sea Cucumbers are excellent natural cleaners that consume detritus, organic waste, bacteria, and biofilm from the substrate. Their constant feeding helps maintain cleaner sand beds and supports a healthier reef environment.
Greenfish Sea Cucumbers feed on organic matter trapped within the substrate, including detritus, bacteria, biofilm, microalgae, and microscopic organisms. They rely heavily on mature sand beds for long-term nutrition.
Yes. In very clean aquariums or tanks with limited substrate, food sources can become depleted over time. Mature aquariums with established sand beds provide the best chance of long-term success.
Occasional glass climbing is normal and may occur while the cucumber searches for food or explores new areas of the aquarium. Persistent climbing can sometimes indicate insufficient food availability or changing environmental conditions.
Yes. Greenfish Sea Cucumbers do not consume SPS corals, LPS corals, soft corals, zoanthids, or anemones and are considered fully reef safe.
Most aquarists recommend waiting at least 6–12 months before introducing a sea cucumber to ensure the aquarium contains sufficient biological maturity and natural food sources.