Holy Grail Micromussa
Micromussa, an acan. Beginner to keep, typical PAR 75–250, low to moderate flow.
Also sold as Micromussa Holy Grail, HG Micromussa, Holy Grail Micro.
An established line. The same coral under this name at any shop.
Collector tier: rare, where the trade ranks it from common through grail. In stock at 8 surveyed shops on 2026-10-19.
A small-polyp Micromussa, each polyp about a quarter inch across, well under an acan lord's, and every polyp ringed in several colours. Shops agree on red and green and most add blue; the fullest description, from the farm that sells it, runs from a lime green mouth through a deep blue ring, then yellow, lime green and a wide red outer ring. One grower believes it is Micromussa amakusensis, while other shops label it lordhowensis.
Before you buy one
Count the rings and check the polyp size: several rings of red, green and usually blue on quarter-inch polyps. A two-tone frag of big acan lord polyps is something else. Shops price it by the polyp, from one or two up to five, so divide before comparing. Most listings show a stock photo or the mother colony, and the shops that name their lighting name blue or actinic, so ask for a photo under white light.
Keeping acans
Low rock, gentle flow, and it feeds heavily. Holy Grail Micromussa is beginner to keep at a typical PAR of 75–250 in low to moderate flow. A typical starting range for this type of coral, not measured on this one.
What Holy Grail Micromussa goes for
No verified sales yet. A range publishes once 3 dated, checkable records from 3 different sources exist, priced per polyp and reported as a median, with what shops ask kept separate from what buyers paid. One polyp, so a ten-polyp frag is divided by ten. Listings that do not state the count are dropped rather than assumed. Nothing on this page is for sale. Shops are typically asking $19 to $71 per polyp, median $24, across 8 shops surveyed on 2026-10-19; the full sweep ran $11 to $120. Asking prices are what sellers want, not what buyers paid. On 2026-10-19 it was in stock at 8 surveyed shops: coralstop.com, jasonfoxsignaturecorals.com, kungfucorals.com, newyorkreefaquatic.com, reefloungecoral.com, somethingfishytropicals.com, and 2 more.
Easily confused with
- Rainbow Acan: Two contrasting shades on corallites up to about 15mm, where a Holy Grail carries several rings, red, green and usually blue, on quarter-inch polyps.