
Radioactive Dragon Eye Zoanthid
Zoanthus vietnamensis
An absolute classic staple for any reef aquarium, this Radioactive Dragon Eye Zoanthid features highly fluorescent neon-green centers contrasted against a striking dark green/yellow skirt. This exceptionally hardy, fast-growing soft coral glows intensely under actinic blue LED lighting. This listing is for a healthy, fully acclimated WYSIWYG frag—the exact piece shown is what will be delivered to your door.
- Lighting
- Medium
- Flow
- Medium
- Placement
- Lower Mid
- Temperament
- Peaceful, but can spread fast
100 in stock · ships overnight, live arrival guaranteed
Care guide
Keeping Zoanthus in a reef tank
Zoanthus vietnamensis produces unusually large polyps for the genus, with the pronounced concentric colour rings that make named dragon-eye morphs recognisable. Care matches Zoanthus generally, but the larger polyps make skirt and centre colouration far more visible, so spectrum matters more here than with smaller-polyped zoas.
Lighting for Radioactive Dragon Eye Zoanthid
Moderate light with a heavily blue-weighted spectrum brings out the colour rings that distinguish one named morph from another. Under warmer or dimmer light the same polyps look flat and considerably less impressive. This particular frag is rated for medium light — roughly 100–200 PAR, around the middle of the rockwork.
Water flow
Low to moderate flow. Enough movement to keep detritus from settling among the polyps is right; strong direct current keeps them closed and slows the colony's spread. Flow for this frag should be moderate and variable.
Placement and tank mates
Lower Mid. Peaceful, but can spread fast.
What to watch for
Handle with gloves and never with broken skin. Many zoanthids carry palytoxin, which is genuinely dangerous, and it should never be handled outside water or scraped dry. Zoa-eating nudibranchs and sudden unexplained melting are the two pest problems that account for most colony losses.