Long Tentacle Anemone (Macrodactyla doreensis)
Reef compatible: Yes
Care level: Intermediate
Disposition: Semi-aggressive
Minimum tank size: 30 gallons
Mature size: 20 inches
Placement in tank: Low
Light level: Moderate
Water flow: Moderate
Product Specifications
| Parameter | Value |
|---|---|
| Size (when mature) | 20 inches |
| Adult tentacle length | 5″ to 7″ |
| Minimum tank size | 30 gallons |
| Light requirement | Moderate |
| Water flow | Moderate |
| Compatibility with reef | Yes |
| Behavior | Semi-aggressive |
FAQ
Is this anemone suitable for a reef tank?
Yes, this anemone is reef compatible and can coexist with other reef inhabitants.
What is the expected mature size of this anemone?
The mature size is approximately 20 inches.
What lighting and water flow conditions are required?
Moderate light and moderate water flow are recommended for optimal growth.




Jack Lyman –
The anemone grew well in my 30-gallon tank with moderate lighting. It has a nice spread and stays mostly still. I noticed it gently moves when fish swim nearby. It’s not overly aggressive, which is good for a semi-aggressive species.
Stephanie Mackay –
It arrived healthy and has expanded nicely over the past few weeks. I keep it in a low area with moderate flow. It doesn’t harm other invertebrates and seems to thrive in the conditions I provided.
Jane Martin –
Great addition to my reef setup. The tentacles are long and colorful. It’s not too active, and it doesn’t interfere with other corals. I appreciate the moderate care requirements.