Rainbow Trachyphyllia (Rainbow Open Brain)
A variant of Open brain coral (Trachyphyllia geoffroyi)
Representative Open brain coralphoto — a dedicated image of this exact morph isn't available yet.
A *Trachyphyllia geoffroyi* displaying several bright colors at once — typically a green or blue base with red, orange and purple banding radiating across the inflated fleshy folds.
📜 Backstory
Rainbow open brains are wild-collected single- or multi-mouth specimens, the multicolor ones picked off mostly Indonesian (and some Australian) collection stations for their pigment. Color depends heavily on collection depth and area; some plain specimens even develop more color under aquarium lighting. True multicolor Trachys are slow to divide and command a premium. The 'rainbow' grade is a collector/vendor designation rather than a named lineage.
Keeper tips for this variant
Place on the sandbed in low flow under low-to-moderate light (PAR ~50-100); too much flow tears the tissue and bright light bleaches the colors.