Long Tenticle Anenome

Long Tentacle Anemones (Macrodactyla doreensis) are beautiful and interactive reef inhabitants known for their flowing tentacles and their ability to host clownfish. When provided with the right environment and stable water conditions, they can become a stunning centrepiece in a marine aquarium.

Lighting

Long Tentacle Anemones prefer moderate to high lighting. As photosynthetic animals, they rely heavily on light for energy. If moving them into a brighter system, acclimate them gradually to prevent stress.

Flow

Provide moderate water flow that allows the tentacles to sway gently. Avoid excessively strong or direct flow, as this can cause the anemone to retract or move around the tank in search of a more suitable location.

Feeding

While Long Tentacle Anemones receive much of their nutrition from light, they benefit from occasional feedings of:
Mysis shrimp
Krill
Chopped prawns or fish
Marine-based frozen foods
Feed sparingly once or twice per week to support growth and health.

Placement

Long Tentacle Anemones naturally prefer soft sandy substrates where they can bury their foot deep into the sand and attach to rock beneath. A sand bed of at least several centimetres deep is recommended. Once settled, avoid moving the anemone unless absolutely necessary.
Water Quality

Stable water parameters are essential for long-term success. Anemones can be sensitive to sudden changes in water chemistry, so stability is often more important than chasing specific numbers.

Tank Mates

Give your Long Tentacle Anemone plenty of space. Its tentacles contain stinging cells that can damage nearby corals and other anemones. It is also important to protect powerheads and pump intakes, as wandering anemones can be injured if they come into contact with equipment.
Many clownfish species will readily host in Long Tentacle Anemones, creating one of the most iconic partnerships in the reef aquarium.

Final Thoughts

Long Tentacle Anemones are a fantastic choice for reef keepers looking to add movement, colour, and natural clownfish hosting behaviour to their aquarium. With strong lighting, a suitable sandy home, stable water conditions, and occasional feeding, they can thrive and become a spectacular feature of the reef tank.