Tell me yo did not get a colored one though. I believe they are dyed.
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Flow
Medium to High. You do not want the branches to whip about, but they should sway gently in the current(excepting the short branched forms) Curent should not be a tight stream directed on the coral. Random current patterens will be appreciated by the coral. Proper flow helps ensure removal of excess mucus and aids during shedding.
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Lighting
Sinularia can adapt to all ranges of lighting that are considered acceptable for corals. Medium lighting produces better results then low however. Adjusting the coral to high lighting should be done slowly. Colors, such as green, in some species are more pronounced with actinics.