Variable Star

Variable Star is a named zoanthid from the People Eater era of the family, and its naming record survives in unusual detail. The PE Zoanthid Catalogue, a history thread written by a keeper who handled the early imports, files the strain among a wave of polyps that arrived with an outer halo ring made of lines or rays, many of them speckled as well. Within that wave, the form carrying a purple and pink ring was named Variable Stars — an astronomy name, the source explains, taken from a type of waning star. The master strain queue's shorter description, a star-burst patterned disc, describes the same figure from the other side: radial lines running outward across the face, ringed in purple and pink.

That halo figure is the working check, and the entry builds it carefully because the name travelled inside a group. The catalogue's own taxonomy passage sorts the People Eater polyps by disc structure, and the halo form is one of its distinct kinds: an outer halo ring with radial lines reaching about halfway into the body, then a smooth disc and a slit mouth. A buyer should run that full check together — purple-pink outer ring, radial ray lines over the outer half of the disc, smooth centre, slit mouth, checked under light close to neutral — because a plain purple disc with a pink edge alone matches half the purple shelf, while the rayed halo is the feature the name was given for.

The close neighbours were named in the same breath and need keeping apart. Krypton Supernova, named for Superman's home planet in the same passage, carries a bluish outer halo ring with green speckles — the shards of kryptonite, in the namer's image — and reads blue-green where Variable Star reads purple-pink. The speckled greens with a white halo became Aspen Palys. A multicoloured run of speckled and haloed variants followed, most of them taking space names as well, and the source remarks that the group at close range resembles a Hubble telescope photograph. That shared origin explains why these names are confused in resale: they arrived together, they share the halo architecture, and colour is the main sorting feature keepers were given.

The People Eater framing matters for size and handling expectations. The catalogue treats the PE polyps as the larger, huskier end of the zoanthid shelf — paly-sized polyps rather than small button zoas — and its taxonomy discussion records that the PE style of polyp was at one point renamed toward Zoanthus gigantea on the argument that the polyps were larger than the button-polyp group and grew differently at the base. The same discussion holds that the PE umbrella probably covers three or four separate species sorted by disc structure, with the halo-ring form one of them. This entry files the strain as Zoanthus sp. following the master queue, records the gigantea discussion here as group history, and claims no species for this strain.

Care follows the durable end of the zoanthid script, on the group record that exists. AquariumDomain's profile of the group's founding morph, Purple People Eaters, rates that morph Easy and relatively easy to house across a variety of reef setups, spreading to colonise nearby rock under proper conditions. Top Shelf Aquatics' family text agrees on the shape of the claim — relatively hardy, adaptable, tolerant of minor fluctuations while stability remains the key to long-term colour. No keeper record found for this run reports this strain melting or failing at the rate some PE-era collector names are known for, and the entry claims Easy on that combined record while noting the strain-specific file is thin — one primary history source and no modern care page under this name was found.

Water chemistry follows the standard reef shape, and the two records read this run agree closely. Reef To Go's standard parameters suit the strain: temperature 77–79 °F, salinity near 35 ppt (about 1.024–1.026), alkalinity 8–10 dKH held steady, calcium 400–450 ppm, with low but detectable nitrate and phosphate. The PE group profile gives 72–79 °F, alkalinity 8–12 dKH and salinity 1.023–1.025, with magnesium, iodine and trace elements as its supplement list. Top Shelf Aquatics gives calcium 380–450 ppm, magnesium 1,250–1,350 ppm, nitrate 5–15 ppm and phosphate under 0.10 ppm for the family. Zoanthids carry no calcium skeleton, so the colony itself makes no dosing demand; stability and steady nutrients do the work.

Light is one place the group record and the family record pull in different directions, and the entry keeps both visible. The PE group profile calls for medium to strong lighting so the symbiotic algae thrive. The family band at Top Shelf Aquatics is 75–150 PAR, with moderate light typically sufficient, some varieties colouring brighter higher, and a slow 2–3 week transition required to avoid bleaching. The working plan that respects both records is to start low in the family band on lower rockwork, climb in small steps, and let the colony's own response arbitrate — compact growth and a saturated purple-pink ring argue for holding or climbing, stretching stalks argue for more light, and a washed or closed colony argues for stepping back down. Judge the rayed halo and the slit mouth, which hold across spectrum changes, ahead of raw saturation, which shifts with the light over the tank.

Flow follows the same split in milder form. The family text calls for moderate, indirect flow that sweeps debris off the mat and leaves the colony open and extended. The PE group profile calls for moderate to strong flow on the same reasoning, feeding the zooxanthellae-driven system with steady exchange. The tile holds Medium from the family record; a colony on a raised island that stays open under stronger random flow is following the group record, and a colony that closes under direct flow is giving the more useful answer for its own tank.

Feeding is a supplement with a real but secondary effect. The PE group profile states that most People Eater morphs take the majority of their nutrition from photosynthesis and require no supplemental feeding, while keepers chasing higher growth rates have used very fine filter-feeder foods. Family guidance adds fine-particle foods offered a few times a week, broadcast or wafted over the colony with flow paused for ten to fifteen minutes, supporting colour and growth. Heavy feeding risks a film of algae on the mat, and consistent nitrate and phosphate usually matter more for colour stability.

Placement should plan from day one for a mat-forming colony on its own island rock. The PE group profile makes the containment point in its own terms: these polyps colonise nearby rock and hard surfaces, crowding neighbouring corals as they grow in, so gaps between rocks form the boundary that limits the carpet. Zoas win ground by cover rather than by stings, so the neighbour risk is shading and overgrowth, and an island contains the spread to one observable rock. The placement disagreement above is about height, and it can be settled in the tank: begin on a low island, walk the colony upward only as its colour and shape ask for more light, and keep the island wherever it lands so the containment survives the move.

Pests and predators deserve a check on any new frag. The family checklist is a night inspection — zoa-eating nudibranchs, sundial snails and tiny zoa spiders near the skirt, egg spirals removed by hand, dips repeated across hatch cycles when finds appear. Handling follows the family safety rule at full strength: Top Shelf Aquatics warns that some zoanthids and their Palythoa relatives can carry palytoxin, so gloves and eye protection go on for every handling session, colonies stay away from high heat, and hands and tools are washed thoroughly afterwards. The PE group sits at the larger-polyp end of the family, and the standing practice treats every colony as a carrier regardless of which name it carries.

Field notes — what keepers report

- The naming record is a first-hand account, and it is the strongest evidence this entry has. In the PE Zoanthid Catalogue history (thread opened 2009, the naming passage edited 2013), the keeper who handled the early People Eater imports describes a sequence: solid forms first, then speckled forms, then a wave carrying an outer halo ring made of lines or rays. Inside that wave he names three forms in one passage — the speckled greens with a white halo seen as Aspen Palys, the blue-ringed green-speckled form named Krypton Supernova, and the purple-pink ringed form named Variable Stars, with the astronomy gloss attached. The passage is history and colour-check evidence; it carries no care claims, and this entry uses it for those two purposes alone.

- The same source gives the halo group a structural definition that later resale listings dropped. Its closing taxonomy passage sorts People Eater polyps into disc kinds and describes the halo kind as an outer ring with radial lines reaching halfway into the body, then a smooth disc with a slit mouth — distinct from the solid-body kind and from the kind with radial lines running to the centre. A keeper offered material as Variable Star can test that structure directly: rays that run all the way to the mouth describe a different PE kind under the source's own sorting.

- The light record splits, and both sides stay visible. One side is the PE group profile: AquariumDomain calls for medium to high lighting and a middle-to-top placement for the group's founding morph, while advising keepers in the same profile to start lower and move up after acclimation. The other side is the family record: Top Shelf Aquatics works zoanthids at 75–150 PAR, calls moderate light typically sufficient, and warns that high light demands slow acclimation to avoid bleaching. A keeper can therefore treat the group placement as the destination some colonies want and the family band as the road — start low, climb slowly, and read stretching versus washing as the colony's own vote.

- The flow record splits the same way, in the same two sources. AquariumDomain gives moderate to strong waterflow for the PE morph; Top Shelf Aquatics gives moderate, indirect flow for the family, strong enough to keep detritus from settling and gentle enough that polyps stay open. The tile follows the family figure, and the group figure is recorded here as the dissenting range for larger PE-type colonies.

- The feeding record carries a small, honest disagreement about value. The PE group profile holds that most People Eater morphs acquire the majority of their nutrition from photosynthesis and do not require supplemental feeding, with higher growth rates reported by some keepers from very fine foods. The family guidance recommends regular fine-particle feeding for colour and growth. Both records agree on the mechanism — photosynthesis first, fine particles second — and differ mainly on how much the second part matters, so the notes present feeding as optional support rather than a requirement.

- The price record is an absence, recorded rather than filled. No current retail listing or keeper sale for Variable Star was found in the sources read this run — searches under both the singular and plural forms returned the history thread and unrelated star-named corals, with no sale listing for this strain. A PE-era halo name with a thin modern trade presence will mostly move keeper-to-keeper under its plural catalogue name, and this entry sets no price expectation from a neighbour's figures.