Orange Tube Anemone – Cerianthus
Cerianthus tube anemones are distinctive, non-photosynthetic marine invertebrates (class Anthozoa) that construct and live within deep, fibrous, parchment-like tubes buried in soft, sandy, or muddy substrates. Popular in marine aquariums for their vibrant, long, flowing tentacles (ranging from white to purple, orange, and green), they require intermediate care, moderate flow, and regular feeding of small meaty foods.
Key Care Requirements & Behavior
- Diet: Carnivorous; require regular feeding (e.g., mysid shrimp, plankton) as they do not possess symbiotic zooxanthellae.
- Lighting: They are non-photosynthetic and prefer lower light conditions.
- Habitat: Require a deep (at least 7.5cm/3″) sand or mud substrate to bury their tube.
| Parameter | Requirement |
|---|---|
| Diet | Small meaty foods (e.g., mysid shrimp, plankton) |
| Lighting | Low to moderate |
| Substrate | Deep sand or mud (minimum 7.5cm/3″) |
| Water Flow | Moderate |
FAQ
What type of food should I feed my Orange Tube Anemone?
Feed small meaty foods such as mysid shrimp or plankton regularly. They are carnivorous and do not have symbiotic zooxanthellae.
Does the Orange Tube Anemone need strong lighting?
No, it prefers lower light conditions since it is non-photosynthetic.
What substrate is best for planting the Orange Tube Anemone?
A deep sand or mud substrate of at least 7.5cm (3″) is required for the anemone to bury its tube properly.

Charles McLean –
The Orange Tube Anemone adds a striking visual element to my tank. The orange tentacles stand out well against the background. I feed it mysid shrimp twice a week and it stays healthy. The substrate is deep enough and the flow in the tank is moderate, which works perfectly.
Steven Parsons –
It’s a beautiful addition to my marine setup. I noticed it buries itself well in the sand. Feeding it small shrimp works, though it takes a few weeks to become active. I keep the lighting low, as recommended.
Peter Mathis –
Very satisfied with this anemone. It has grown steadily over the past few months. The tube is well-formed and the color is vibrant. I make sure to feed it every other day with plankton and mysid shrimp.