Distribution: Indo-Pacific. Commonly aquacultured. Coloration: A dark green to iridescent, with brown in areas not receiving intense lighting. Care Level: Moderate once established, difficult while acclimating. Lighting: Intense (MH or T5HO), the higher the quality of lighting the better the coloration. Will brown out quickly under moderate lighting. Placement: High in direct lighting. High indirect flow, will not fully expand polyps in areas of lower flow. Specific gravity: 1.024-1.026. Calcium: 350-450. Alk: 8-11 dkh. Magnesium: 1350-1450. Temperature: 78-82. A somewhat sensitive coral to temperature swings. May show decreased polyp extension at temps below 76 and above 82. Nutrition: Will display mesenterial filaments in response to introduction of food, flow must be adequate. Feeding response witnessed after introduction of a slurry containing proteins ie: clams, fish and invert eggs, zooplankton. Does not require direct target feeding, slow addition of the slurry to the water column, works well. Receives the greatest part of it's nutrition from symbiotic zooxanthellae. Mesenterial filaments. There are several different types of Acropora Tortuosa, most have a smooth skin appearence, with distinct corallites structures almost resembling a bottle brush. Polyps may be different colors depending on the type of Tortuosa, the Neon Green's are pale green in color. Moderate growth, with more vertical growth than encrusting growth. Will require supplementation of Calcium, Magnesium and a buffer. Routine water changes with good quality salt to replenish trace elements such as Strontium and others. Of all my acropora, this one is the least aggressive and usually loses the battle when placed next to a more aggressive coral. Thank you for viewing.