
Illustrative images
Macrodactyla doreensis
The Long Tentacle Anemone, scientifically known as Heteractis crispa, is a striking marine invertebrate often sought after by aquarists for its captivating appearance and behavior. While commonly referred to as an anemone, it is essential to note that it is not a fish, but rather a member of the order Actiniaria, known for its symbiotic relationships with various fish species, particularly clownfish.
This species is typically found in the shallow waters of the Indo-Pacific region, inhabiting coral reefs. It tends to prefer sandy or rocky substrates, where it can anchor its base securely. Long Tentacle Anemones thrive in clear waters with strong lighting, which facilitates their photosynthetic symbionts (zooxanthellae) to flourish.
Long Tentacle Anemones require a well-maintained marine aquarium to thrive. Here are some essential care parameters:
To create an ideal habitat for Long Tentacle Anemones, consider the following:
Long Tentacle Anemones can host clownfish and some other fish species that are circumstantially resistant to their stinging cells. However, care should be taken when introducing tank mates.
While capable of photosynthesis through their symbiotic algae, they also require supplemental feeding. Feed your Long Tentacle Anemone with:
The Long Tentacle Anemone is a stunning addition to any marine aquarium, particularly for those interested in keeping clownfish. With proper care and a compatible environment, this species can thrive and become a focal point in your aquascape.
Use a minimum 30-gallon tank with a sandy or rubble substrate at least 4 inches deep to allow the anemone to anchor its foot. ([reefs.com](https://reefs.com/invertebrates/long-tentacle-anemone/?utm_source=openai))
Introduce the anemone to the tank slowly to minimize stress and allow it to adjust to its new environment. ([theaquariumwiki.com](https://www.theaquariumwiki.com/wiki/Macrodactyla_doreensis?utm_source=openai))
Keep the water temperature between 72-79°F (22-26°C), pH between 8.1 and 8.4, and specific gravity (salinity) of 1.023-1.025. Nitrate levels should be kept between 1-20 ppm, nitrite levels below 0.0001 ppm, and phosphate levels between 0.01-0.1 ppm. ([tankfacts.com](https://www.tankfacts.com/invertebrates/saltwater/anemones/long-tentacle-anemone_189?utm_source=openai))
Ensure moderate to high lighting, around 200-300 PAR, to support the anemone's photosynthetic needs. ([enviroliteracy.org](https://enviroliteracy.org/animals/where-do-you-put-a-long-tentacle-anemone/?utm_source=openai))
Offer small pieces of fish, mussels, crustaceans, and frozen foods to meet the anemone's carnivorous diet. ([reefs.com](https://reefs.com/invertebrates/long-tentacle-anemone/?utm_source=openai))
Be cautious with tankmates, as the anemone is semi-aggressive and may sting other reef inhabitants if they encroach upon its space. ([fishy.wiki](https://fishy.wiki/en/salt-water-fish/actiniidae/macrodactyla-doreensis.phtml?utm_source=openai))
Monitor the anemone for signs of stress or detachment, adjusting tank conditions as needed to ensure its well-being. ([theaquariumwiki.com](https://www.theaquariumwiki.com/wiki/Macrodactyla_doreensis?utm_source=openai))
Maintain a temperature of 72-79°F (22-26°C), pH between 8.1 and 8.4, and specific gravity (salinity) of 1.023-1.025. Nitrate levels should be kept between 1-20 ppm, nitrite levels below 0.0001 ppm, and phosphate levels between 0.01-0.1 ppm. ([tankfacts.com](https://www.tankfacts.com/invertebrates/saltwater/anemones/long-tentacle-anemone_189?utm_source=openai))
A minimum tank size of 30 gallons (113 liters) is recommended to accommodate the Long Tentacle Anemone's needs. ([reefs.com](https://reefs.com/invertebrates/long-tentacle-anemone/?utm_source=openai))
The Long Tentacle Anemone can grow up to 20 inches (50.8 cm) in diameter. ([theaquariumwiki.com](https://www.theaquariumwiki.com/wiki/Macrodactyla_doreensis?utm_source=openai))
The Long Tentacle Anemone is carnivorous, feeding on small pieces of fish, mussels, crustaceans, and frozen foods. ([reefs.com](https://reefs.com/invertebrates/long-tentacle-anemone/?utm_source=openai))
The Long Tentacle Anemone is considered reef-safe with caution, as it may move around and sting other sessile invertebrates. ([fishy.wiki](https://fishy.wiki/en/salt-water-fish/actiniidae/macrodactyla-doreensis.phtml?utm_source=openai))
The Long Tentacle Anemone is semi-aggressive and may sting other reef inhabitants if they encroach upon its space. ([fishy.wiki](https://fishy.wiki/en/salt-water-fish/actiniidae/macrodactyla-doreensis.phtml?utm_source=openai))
Provide moderate to high lighting, around 200-300 PAR, to support the Long Tentacle Anemone's photosynthetic needs. ([enviroliteracy.org](https://enviroliteracy.org/animals/where-do-you-put-a-long-tentacle-anemone/?utm_source=openai))
Aim for low to moderate water flow, as strong currents can stress the Long Tentacle Anemone, causing it to detach and wander. ([enviroliteracy.org](https://enviroliteracy.org/animals/where-do-you-put-a-long-tentacle-anemone/?utm_source=openai))