Long Tentacle Anemone

Macrodactyla doreensis

Saltwater Invertebrate Species Group: Anemones Family: Actiniidae

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Water parameters

Temp 76-80 F Temperature

Maintaining a stable and appropriate temperature is critical for the survival of aquatic life.

pH 7.8 - 8.4 potential of Hydrogen

Measuring the acidity or alkalinity of water on a 0–14 scale, where 7 is neutral, 7 is alkaline.

NO3 1-20 ppm Nitrate

While less toxic than ammonia, high nitrate levels (above 40–80 ppm) are important to monitor because they can cause fish stress, stunted growth, and harmful algae blooms.

NO2 <0.0001 ppm Nitrite

It is a highly toxic, intermediate compound in the nitrogen cycle produced from broken-down ammonia

PO4 0.01 - 0.1 ppm Phosphate

It is essential for plant development but must be managed, as excess levels trigger nuisance algae blooms and inhibit coral calcification.

NH3 <0.1 ppm Ammonia

It is the primary killer of aquarium fish, causing gill damage, stress, and death

Ca 380 - 450 ppm Calcium

Supporting the growth, skeletal structure, and shell formation of corals, mollusks, crustaceans, and coralline algae

KH 8 - 12 dKH Alkalinity

It acts as a shield, neutralizing acids to prevent dangerous pH "crashes" that can harm fish, corals, and plants.

Mg 1200 - 1400 ppm Magnesium

It enables coral growth by supporting skeletal formation, assists in metabolic processes, and ensures that calcium is available for corals, clams, and coralline algae.

SG 1.023 - 1.026 SG Salinity

Essential for maintaining stable, natural water parameters, proper osmoregulation, and stress-free environments for marine fish and corals

ORP 250 - 400 mV Oxidation-Reduction Potential

A higher positive mV indicates clean, oxygen-rich water with high water quality, while low readings indicate high pollution.

About Long Tentacle Anemone

General information

The Long Tentacle Anemone has a similar appearance to Heteractis crispa, which has more tentacles and a tougher column. Its oral disc is usually visible and can grow up to 20" in diameter. Its tentacles are spaced further apart than other similar anemones. It is found in various forms and color patterns, but its base is usually orange to red.

Hosting
The Macrodactyla Doreensis anemone has been known to have a symbiotic relationship with A. Clarkii (Clark's Clownfish), A. Perideraion (Pink Skunk Clownfish), A. Polymnus (Saddleback Clownfish), Premnas Biaculeatus (Maroon Clownfish).

Additional details

Use venomous cells nematocysts in their tentacles, to sting or deflect possible threats or attacks

All photos

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