Black Widow / Black BTA
A variant of Bubble tip anemone (Entacmaea quadricolor)
Representative Bubble tip anemonephoto — a dedicated image of this exact morph isn't available yet.
A dark maroon-to-black bodied morph, often with green or red bubble tips, prized for its dramatic contrast under blue light.
Keeper tips for this variant
The dark pigment is partly a stress/shade response — keep light moderate and stable, since pushing too much PAR can lighten it toward plain rose.
Other Sea Anemones variants
Rose bubble tip anemone (RBTA)Rainbow bubble tip anemoneGreen/brown bubble tipGreen Bubble Tip Anemone (GBTA)Orange/Flame Tip BTABubble Tip 'Splatter' / ConfettiBlack Widow Bubble-Tip AnemoneOrange/Flame Bubble-Tip AnemoneGreen/Green Tip Bubble-Tip Anemone (GBTA)Rainbow Bubble Tip Anemone (Rainbow BTA)Black Widow Bubble Tip AnemoneColorado Sunburst (CSB)Chicago Sunburst (ChSB)Arizona SunsetUltra Rainbow BTAInfernoSupernovaFlame Tip BTA