Bubble Tip Anemone Varieties and Colours: Rose, Rainbow, Black Widow
Few reef animals have produced as many named colour morphs as Entacmaea quadricolor, and bubble tip anemone varieties colours now range from common green at $25 SGD to designer pieces that sell for ten times that. This guide from Gensou Aquascaping at 5 Everton Park breaks down the varieties you actually encounter in Singapore shops, what drives their pricing, and which morphs hold value long-term. Whether you are building a clownfish host tank or collecting BTAs as display pieces, understanding the naming conventions helps you shop smart.
Quick Facts
- All BTA colour morphs are Entacmaea quadricolor, differing only in zooxanthellae expression
- Colours are not permanent; light spectrum, intensity, and nutrients shift them over months
- Rose BTAs are the most common colourful morph, typically $40-80 SGD
- Rainbow BTAs show multiple colours simultaneously and command $200-500 SGD
- Black Widow is a dark purple-red morph prized for contrast, $150-300 SGD
- Split tank-raised specimens hold colour better than wild imports
- Bubble tips are the only anemone genuinely reliable as host for most clownfish species
Why BTA Morphs Exist
The colour of a bubble tip comes from its symbiotic zooxanthellae and from anemone-produced pigments in the tentacles and body column. Captive propagation under specific light, flow, and nutrient regimes has produced strains that consistently express certain colour combinations, and splits from those strains inherit the visual character reliably. Wild imports reset to more muted green or brown over time in generic reef conditions.
Common Green and Brown
The base-form bubble tip is green, tan, or brown with the characteristic bulbous tentacle tips. These are the cheapest specimens, running $20-40 SGD in most Singapore shops, and they are the most forgiving for beginners. Under strong blue-dominant LED, the green morph can develop appealing fluorescence. Do not dismiss this tier; a well-kept green BTA with a resident pair of clownfish is a rewarding centrepiece.
Rose Bubble Tip
Rose BTAs are the workhorse colourful morph, showing a consistent rose-pink to red body column with tentacles ranging from pink to deeper red. They originated from Maldivian wild stock and have propagated widely in captivity over the past two decades. Price in Singapore typically runs $40-80 SGD for a 6-10cm specimen, and larger or deeply-coloured individuals reach $100-150.
Rose morphs hold colour well under mid-intensity LED (80-150 PAR) with mild nutrient levels. They fade under extremely low-nutrient ULNS conditions, so keepers chasing SPS parameters sometimes see reds turn pink or pale.
Rainbow Bubble Tip
The rainbow is the crown-jewel morph. A single specimen can display green, pink, orange, blue, and purple simultaneously across tentacles, oral disc, and body column. Rainbows are captive-propagated almost exclusively from a handful of founder specimens, and Singapore hobbyists typically source them through specialised shops like Reef Depot or from hobbyist sales on Carousell.
Prices range from $200 for a small split to $500+ for a mature, fully-coloured specimen. Rainbows need strong, high-quality LED with broad spectrum to express full colour; reduce blue-only lighting and expect colour to shift over three to six months as the animal settles.
Black Widow
Black Widow BTAs display deep purple to near-black body columns with bright red or magenta tentacle tips. The contrast against white sand or light-coloured rockwork is striking, and the morph has become very popular in the past five years. Price sits $150-300 SGD in Singapore.
Black Widow holds colour best under moderate lighting. Push too much intensity and the body column lightens toward purple; too little light and it can turn muddy brown. A stable, mid-range lighting schedule preserves the characteristic contrast.
Other Named Morphs
Maroon or colourado sunburst shows a red body with yellow-orange tentacles, $80-180 SGD. Golden Torch bubble tips display olive-gold tones and fetch $100-200. Mohican and other designer splits pop up in smaller numbers through hobbyist circles, priced case by case. New morph names appear each year, often just marketing rebrands of known strains, so judge by the actual specimen photograph rather than the label.
Buying in Singapore
For common green and brown BTAs, most marine shops around Pasir Ris, Clementi, and Jurong carry them regularly at low prices. For rose, browse Iwarna Aquafarm, Reef Depot, and the weekend hobbyist sales on local Facebook groups. For rainbow and Black Widow, specialised coral shops and hobbyist splits through verified sellers on Carousell are the usual routes.
Inspect the foot before buying. A healthy anemone attaches firmly to glass or rock; one lying on its side with an open mouth and loose tentacles is dying and no price is justified.
Keeping Colour Through Time
BTAs fade or shift colour under four stressors: mismatched light spectrum, wrong intensity, unstable nutrients, or aggressive chemical filtration. Stability beats optimisation; pick a lighting schedule that preserves colour in the first month and do not change it for six months. Feed the anemone silversides or mysis once a week to maintain body mass, which indirectly supports pigment expression.
Splits from your own specimen often hold parent colour better than new purchases, because the photo-adaptation is already matched to your system.
Clownfish Pairing
All colour morphs host clownfish equally well. Pairing choice is aesthetic; black ocellaris in a Black Widow, orange ocellaris in a Rose, and mocha gladiator in a Rainbow are popular Singapore combinations. Introduce clownfish after the anemone has settled for at least two weeks.
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