From Microcosm Aquarium Explorer
Not good beginner corals. They need high, often surging current flow to prevent tissue recession at the base of branches, coupled with very good water quality. They tend to turn brown in tanks with even moderate nutrient levels.
Other common name(s):
Maximum length: 200 cm (79 in)
Maximum height: 61 cm (24 in)
Minimum aquarium size: 380 L (100 gal)
Lighting: Bright lighting is essential.
Placement: In full bright light.
Water: Marine 24 °C (75 °F) - 28 °C (82 °F)
Zooxanthellate; need microplankton or small particulate organic matter for best growth.
No Acropora should be placed in a tank that is less than a year old. These corals need a stable, “mature” tank with excellent water quality, and must be spaced properly to allow for growth.
Maintain calcium concentrations at or near 450 ppm. Maintain alkalinity at 3.2 to 4.5 meq/L (9 to 12 dKH). Maintain phosphate at undetectable levels. The aquarium system must be "mature" (stable for at least a year).
Natural ability to propagate by fragmentation allows clonal aquaculturing. Such clones have undergone physiological adaptation to captivity and survive far better than wild-caught individuals.
Many of these corals will show different growth forms in different aquariums.