ORA Pearlberry

ORA Pearlberry is the pearlescent Acropora strain that ORA (Oceans, Reefs & Aquariums) brought to the hobby, and it has held a place on SPS collectors' want lists since its release era in the mid-2000s. A keeper who owned the original on its original ORA plug dates his piece to 2006–07, around the time of release, and records that ORA asked his permission to use his photograph of the coral on their site. By late 2008, keeper posts show Pearlberry frags being bought and traded alongside the other 2008-era ORA releases. The strain's calling card is the skin: a pale, glowing pearlescent base along the branches that keepers describe as shifting colour every time they look at it.

Colour needs careful words, because the sources describe the same coral from different lights and reach different accents. ReefBum records purplish tips, greenish corallites, and a gorgeous pearlescent colouration on the branches, with the piece seeming to glow. The Reef2Reef spotlight records a gorgeous pearlescent skin with lovely lavender corallites and contrasting-coloured polyp tentacles. An early frag-pack description records delicate branches with a pearl background, purple and blue tips, and bright shades of green. TankFacts' record summarises the coral as predominantly violet with a white undertone. Read together, the stable core is a pale pearly branch with purple-to-lavender growth tips and green tones in the corallites, and the variable part is which accent a given light shows first.

The species question is part of this strain's identity, and the entry states it plainly. ORA's own description says Pearlberry resembles Acropora desalwii, and ORA never made a positive identification — keeper threads repeat that wording directly from ORA. The spotlight author compares his colony against both candidates and argues that several Pearlberry colonies, his included, resemble Acropora batunai, walking through AIMS skeletal photographs for both species and finding the two genuinely hard to separate on visual evidence: both grow in corymbose or tabling colonies, both show similar branching and corallite structure, and both carry the light-skinned base and pale colour pattern. Top Shelf Aquatics files the strain as Acropora desalwii in its product and FAQ text. This entry files the strain as Acropora sp., keeps both candidates named, and leaves the question open the way the record leaves it. Genetic testing is the tool the spotlight expects to settle the debate one day.

Growth form follows the corymbose pattern both candidate species share. A settled colony builds a bushy, tabling structure. ReefBum's account gives the flow rule behind the shape: the coral typically grows in a compact ball shape, and it tables out when strong flow runs across the top of its branches. Top Shelf Aquatics' shaping answer adds the mounting rule: the strain encrusts first and then throws slender branches, a small frag mounted horizontally on a flat plug or shelf rock encourages multiple axial points and a mini-table form, and an upright mount favours a single dominant branch. Branches are delicate. ReefBum calls the coral difficult to frag, with cuts that run feast or famine — some yielding one-inch frags and others yielding mini colonies.

Availability has swung hard across the strain's life, and the swing explains its price behaviour. Keeper accounts in the back-in-production thread record that ORA lost its Pearlberry colony at one point and went back to a hobbyist who held the original line for a piece to regrow — a single-source account, recorded here as reported. The same thread, from April 2019, marks the strain back in production after a long absence from ORA circulation: LiveAquaria listed it at $149 and then raised the price to $199 within weeks, a shop in Ohio was asking $250 for a frag, and other keepers in the same thread report chunky frags at $36 and local frags at $50. One poster with wholesale visibility notes that ORA's own wholesale ask made a $200 retail price reasonable once shipping was counted. The lesson for a buyer is that Pearlberry pricing has always tracked verified lineage and current ORA supply, and the spread between a hobbyist frag and a verified-line retail frag is wide.

Provenance is therefore a buying skill with this strain, and the record gives the buyer a concrete route. In the identity thread, a keeper who emailed ORA about locating an original reports that ORA pointed him to Top Shelf Aquatics and was pretty positive TSA held true lineage; TSA then confirmed to him that its frags come from its original ORA mother colony, its primary mother colony. Multiple other keepers in that thread vouch for the TSA colony in person. The same thread carries the warning side: experienced keepers call the true strain difficult to find, estimate that most Pearlberries seen recently are fakes or knock-offs, and note that vendors can hold a wrong line in good faith. The practical tests the thread develops are growth form and skin — the original shows smoother, elongated axial corallites with more spacing between radials and a smooth pearlescent branch surface, while uniform, tightly symmetrical growth draws keeper suspicion. Colour alone settles nothing, because lighting changes this coral's colour fast (see field notes).

Care follows the Acropora standard this database records for its SPS entries, tuned by the strain-specific record. Light demand is high once acclimated: Top Shelf Aquatics targets 300–450 PAR with a strong blue/UV component, keeper colonies succeed at 350–500 PAR, and ReefBum's halide-era colony sat high in the reef while also doing well mid-tank under medium light. Flow should be strong and random, sweeping the colony from multiple angles. Placement is middle to upper rockwork with open room, because shade from neighbours skews both growth and colour on a tabling coral.

Water chemistry is the Reef To Go standard reef base, held steady: 77–79°F, salinity near 35 ppt (about 1.024–1.026), alkalinity 8–10 dKH, calcium 400–450 ppm. TSA's strain FAQ refines the band for this coral: alkalinity steadier and a touch lower at 7.5–8.5 dKH, nitrate 2–10 ppm, phosphate 0.03–0.08 ppm, and potassium 380–420 ppm named for the blue and pearly tones. The spotlight's Quick Stats run cooler and wider — 72–76°F and alkalinity 7–9 dKH — and the entry keeps both records visible. TSA names the dangerous pairing directly: ultra-low nutrients combined with high alkalinity bleaches the tips, and the burnt-tip workup starts with stabilising parameters and raising nutrients slightly when they sit near zero.

Pests and tissue loss get their own paragraph because the strain record names them. TSA's FAQ lists Acropora-eating flatworms among the common triggers for burnt tips and slow tissue loss, with night inspection and dips as the check. The spotlight's general warning for finicky Acropora names pest infestations and rapid tissue necrosis among the punishments for unstable systems. Dip and inspect new frags, look at bases and shaded undersides, and frag ahead of active recession when recession starts — the database's Pests & Diseases section carries the full control records.

Feeding is supplemental. The coral is photosynthetic first, and TSA's farm routine adds phytoplankton blends, fine particulate coral foods, and amino acids, target-fed with circulation paused. Tidal Gardens' genus guidance adds amino acids, rotifers, and cyclops plankton as the useful size classes, and TankFacts' record warns against foods at copepod and artemia-nauplii size, which are too large for the polyps to ingest. A system with fish, fed normally, covers much of the background nutrition.

Growth expectations should be set in two phases before purchase. Phase one is patience: frags take time to establish, TSA records three to six months of apparent stagnation as a normal Acropora settlement pattern, and the spotlight links the strain's slow growth to its scarcity and price. Phase two is speed: ReefBum's settled colony grew very quickly and reached football size, quickly encroaching on neighbouring corals, and other keepers in the sources read call the coral a very fast grower and quick to grow in good conditions. Buy the frag for the colony it can become, and leave the colony room from the first day.

Choosing a specimen comes down to lineage paperwork, growth form, and skin together. Look for a seller who can say where the line came from, elongated and well-spaced axial corallites, a smooth pearlescent branch surface that glows under ordinary white light, and tissue running clean to the base. Expect the colour in a seller's photograph to understate the coral: keeper after keeper in the identity thread reports that the pearlescence is extremely hard to photograph, that the coral can look brighter in person and out of water than in any listing photo, and that a flashlight at night shows colour on this coral when neighbouring corals show none. A plain-looking photo of a documented line is a better buy than a saturated photo of an unnamed one.

Field notes — what keepers report

- The lineage argument is the loudest keeper topic around this strain, and both sides are experienced. One side holds that the true ORA Pearlberry is rare and unmistakable in person: a veteran keeper writes that almost every Pearlberry he has seen recently is not legit, that vendors know no more than anyone else, and that if you owned the original you recognise it on sight; another estimates roughly two of every three offered online are questionable, even from reputable vendors. The other side pushes back on lineage as the measure: a keeper in the same thread argues that a wild piece from the same origin can be the same coral as the named line, and that light and system differences explain much of the variation blamed on fakes. The moderating record is morphological — the original's smoother elongated axials, sparser radial corallites, and smooth pearlescent branches against the tighter, more uniform growth of the suspect pieces — with the caveat from the same discussion that flow and lighting reshape growth form, so form is evidence rather than proof.

- Colour change with lighting is the fastest-moving keeper observation in the record. The identity thread's opening account: a colony that sat basically all green with blue tips under LED/T5 lightened within about two months of adding 250W metal halides and began showing the trademark pearlescence its owner remembered from years earlier. Another keeper calls Pearlberry the only coral he has seen that can change colours so quickly, from blue to green. A third notes his piece is best viewed under a white spectrum. A fourth reports the coral stays coloured out of the water and under a night flashlight when almost every other coral in the tank shows no colour. Keepers read colour as a lighting report first and a lineage report second.

- Placement reports cluster high, with a real middle-tank minority. The placement thread's successful reports run from as high as possible at 350–400 PAR under Radions, to 400–500 PAR under an ATI T5 fixture with the summary that the 300–600 PAR range works fine, with high flow named alongside. ReefBum's own colony was very happy high up under 400W Radiums and also did well in the middle part of a tank with medium lighting. The spotlight's med/top placement matches that combined record. Nobody in the sources read reports success low in a tank.

- Growth reports split by phase, and keepers who keep the coral through both phases reconcile the split themselves. Frag-stage reports describe slow establishment and months of little visible movement. Colony-stage reports describe a very fast grower (identity thread), a piece that can grow very quickly once settled and reach football size (ReefBum), and a coral that is quick to grow in good conditions while suffering when conditions fall short (back-in-production thread). The same keeper community that calls the strain finicky also calls it fast — the difference in the accounts is the age of the piece being described.

- Hardiness reports carry the aquaculture argument on both sides. In favour of the farmed line: a keeper in the back-in-production thread argues ORA corals are already adapted to captivity and generally hardy for that reason, and a buyer in the same thread reports every ORA frag he received arrived well sized, encrusted, and healthy. Against easy confidence: the spotlight calls the strain finicky and easily upset by changes in water quality or lighting, and one 2019 buyer reports an ORA Pearlberry that arrived partially bleached, bleached fully by the next day, and was refunded under the seller's guarantee — with thread replies treating that outcome as unusual for direct ORA frags. Both records stand: farmed origin raises the odds, and this strain still punishes rough handling and unstable systems.

- Price reports span an order of magnitude, and keepers argue about the spread in the open. Historical anchors from sources read: $45 for a frag in a December 2008 keeper post, $35 for a one-inch mounted frag in an early frag-pack listing, $30 for a medium hobbyist frag in a 2020 sale list, and a $70 complaint about frag pricing in the 2016 placement thread. The 2019 return-to-production thread runs $36–$50 for hobbyist and local frags against $149 rising to $199 at LiveAquaria and a $250 shop ask that several posters call gouging, while a wholesale-aware poster defends a $200 retail as reasonable against ORA's wholesale ask. Top Shelf Aquatics lists its cut-to-order frag, typically ¾–1 inch from its verified mother colony, at $99.99 in the page read this run. Keepers who pay the top of the range say plainly that the money buys verified lineage.