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Marine Depot Species Database Education Center - Species Database

Open Brain Coral - Red
Open Brain Coral - Red
Trachyphyllia geoffroyi

This sand dwelling organism will sting other organisms near it, so give it space. Open Brain or Pacific Rose Coral is amongst the easiest to care for, most appropriate true or stony coral species available to marine aquarists. Given selection of initially healthy specimens, moderate light, water movement and decent water quality this it ranks near the top in terms of hardiness. Open Brain Coral has large polyps with a mantle that can be expanded more than three times the size of its skeleton during the day. Generally this is a nocturnal feeder, producing rows of tentacles to capture prey by the dark of night. You can see the numerous mouths in the colonies valleys at this time. Trachyphyllia are "secondarily free-living", starting off as single attached polyps, annealed to a hard substrate, and later breaking off, mostly found on sand to muddy bottoms... their color varying with depth, turbidity of water. Color variation abound in Trachyphyllia, with pink to reddish to tan to brownish to gray to greenish, blue... even multi-streaked ones with highlights. Adapting to a wide range of lighting, water motion and quality, Trachyphyllia is an ideal "starter" or "beginner" stony coral; likely the hardiest of stony/true coral species in aquarium use. Happily it is an abundant/common, easy to collect species in the wild with a distribution range matching its usefulness to aquarists. This specimen requires being directly on the sand. It will puff up it's polyp to shift itself to better recieve the light and flow. Failure to allow it to do this will result in a stressed coral that will likely die.
Diet: Carnivore.
Behavior: The Trachyphyllia geoffroyi is generally semi-aggressive toward other tankmates.
Water parameters: Keep water quality high (SG 1.023 - 1.025, pH 8.1 - 8.4, Temp. 72 - 78 F).
Care: Many consider the Trachyphyllia geoffroyi a medium-maintenance specimen.
Origin: The Open Brain Coral (Red) is commonly collected from Indo-Pacific.
Color: The Open Brain Coral (Red) has a red, red/green, red/tan, red/brown color.
Type of hard coral: Large polyp stony coral (LPS).
Feeding: It likes to eat filter feeding invert food, Mysis Shrimp, micro-plankton a few times per week, when open. Likes to have very small bits of raw shrimp, or silversides.
Lighting: Has intermediate lighting needs.Symbiotic algae zooxanthellae are hosted within this organism.
Water flow: The Pink-Red Open Brain Coral requires intermediate water flow.

Species Compatibility Checker

It is important to make sure species can peacefully cohabitate before adding livestock to an aquarium. Use our handy species compatibility checker to determine if the animals on your wish list will play nice together.

Species Compatibility Chart
Marine Depot Species Compatibility Chart

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