|Category: SPS (Small Polyp Stony)
Common Name: Purple Gray Horrida
Scientific Name: Acropora horrida
Specimen Size: Large frag approximately 1.5″ tall
Origination: RC aquacultured frag
Entry Updated: 12/1/2016
Acropora corals are some of the more difficult corals to maintain in the reef tank, but most will do well if certain conditions are meet as noted below.
Most require strong lighting which can be achieved with higher powered LED, Metal Halide or even T5 systems if placed near the top of the tank.
Water flow must be fairly strong to very strong depending on the species.
As with all stony corals; calcium, alkalinity and magnesium levels should be monitored and maintained at proper levels for the long-term health of this specimen. In addition, nitrates and phosphates should be kept low to optimize coloration of the coral.
Acropora corals generally do best in tanks that house primarily SPS and LPS corals. They do not do well with toxins that can be released by many soft corals, therefore the number of soft corals kept in SPS tanks should be kept fairly low.
Acropora corals can subsist on adequate lighting, water motion and good water chemistry alone if they are housed in a tank with a fair number of well fed fish, but they can also benefit from occasional feedings of small zooplankton foods. At RC, we do 2-3 weekly feedings consisting of a mix of oyster eggs, powered reef foods such as Reef-Roids and Reef Chili as well as small frozen foods such as Cyclopeeze and reef plankton
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||We want you to be happy with the coral that you receive and we take pride in the corals that we offer. To provide true representation of the color and health for our WYSIWYG corals, they are photographed and white balanced under the ReefCorner LED lighting at approximately a 10K to 14K white point to best show the actual color of the coral. The coloration may vary when viewed under different lighting. The grid the coral is typically photographed on is approximately 0.6" per square to give you a size reference.
||We identify the scientific name when we are able to with some degree of accuracy. You will notice that we don’t give our corals cool names like “AWESOME ULTRA SUPER METALLIC NEON RED AND SCREAMING LIME GREEN ULTRA ULTRA COLORED AUSSIE” unless it is a name in common usage in the hobby that helps to identify the coral. We let our pictures do the talking and you can be the judge of whether our corals are awesome or not.
Quick Care Notes
ReefCorner Living Conditions for this specimen:
Lighting: Moderately strong lighting 10 hrs/day using ReefCorner Captive Reef LED Lighting
PAR: 400-450 PAR measured at coral
Water Flow: Strong alternating flow
Food: Feeding system filter feeder foods 2-3 times weekly
Temperature: 77 - 80
Specific Gravity: 1.025 - 1.026
Alkalinity: 9-10 dKH
pH: 8.15 - 8.35
Nitrates, Phosphates, Silicates = 0
General Care Requirements:
Care Level: Easy for SPS experienced hobbyists
Lighting: Requires fairly strong to strong lighting.
Water flow: Strong alternating current.
Placement: On rock work middle to upper level in the tank.
Aggressiveness: Low. Has short polyp reach, but will need some room for growth.
Water Parameters: Stony corals require that water quality is kept high and the following parameters are monitored and maintained to within the tolerable bounds:
Specific Gravity: 1.024 - 1.026
Alkalinity: 8dKH - 12dKH
Calcium: 400ppm or above
Magnesium: 1250ppm or above
pH: 8.0 - 8.4
For more care information, go to our Reef Database Entry