Nexus Aquatics logo
Corals

Purple Cabbage Coral (AC)

Ruffled violet folds that read like living velvet under blue light.

Sinularia dura
Available for local pickup by appointment only.

Purple cabbage leather grows in broad, ruffled folds that catch light like fabric โ€” a rare structural silhouette in a hobby full of branches and polyps. Deep purple coloration holds under moderate lighting, and the colony grows quickly into a substantial display piece. Aquacultured, tank-adapted, and pest-free, with a clean healed base ready to mount.

Care Sheet

What it needs to thrive

Lighting
Moderate โ€” 75โ€“150 PAR.
Flow
Moderate. Enough movement to shed waxy film and keep folds clean.
Feeding
Primarily photosynthetic. Benefits from occasional fine particulate feeding.
Temperament
Semi-aggressive โ€” chemical allelopathy toward nearby stony corals. Run carbon.
Difficulty
Beginner
Ideal Tank Size
20 gallons and up.
Water Parameters
SG 1.025 ยท Temp 78ยฐF ยท Alk 8.0โ€“9.0 dKH ยท Ca 420โ€“440 ppm ยท Mg 1350โ€“1400 ppm ยท NOโ‚ƒ 2โ€“10 ppm ยท POโ‚„ 0.03โ€“0.10 ppm
Placement

Mid to lower rockwork with clear space overhead for the folds to expand. Keep a few inches from stony neighbors.

Aggression & handling

Semi-aggressive chemical warfare. Leathers release terpenoids into the water column that can suppress SPS and LPS growth. Run carbon and maintain regular water changes when keeping leathers alongside stony corals, and expect periodic waxy shedding as it grows.

cabbage leather coralsinularia durapurple coralsoft coralaquacultured coralreef tankcoral fragnexus aquatics
Arrival Protocol

Quarantine, dip, and acclimation

Quarantine

Hold all new fish in a bare-bottom 10โ€“20 gallon QT for a minimum of 4 weeks. Observe for flashing, clamped fins, white spots, or breathing changes. Treat preventatively with copper (1.75โ€“2.5 ppm chelated) or tank-transfer method for ich, plus a praziquantel course for flukes. Invertebrates and corals skip QT but go through dip and observation instead.

Recommended coral dip

For every new coral: a 5โ€“10 minute bath in your reef-safe dip of choice (Bayer Complete, CoralRx, or Reef Primer) following label dosage, followed by two clean saltwater rinses. Inspect plugs and bases for flatworms, pyramid snails, and eggs โ€” remove or refrag onto clean plugs before placing in display.

Acclimation

Float sealed bags in your QT or display for 15 minutes to match temperature. Then drip acclimate at 2โ€“4 drops per second for 45โ€“60 minutes until volume has tripled. Net livestock into the tank โ€” never pour shipping water in. Dim the lights for the first 24 hours to reduce stress.

You may also like

Pairs well with this pick

โ† More corals