Open Brain Coral tank mates
Trachyphyllia geoffroyi
6 rated pairings from the Open Brain Coral care guide. Compatibility here means water, temperament, tank zone and adult size all line up — the note on each card says why. Open Brain Coral needs at least 30 gallons on its own; every companion adds to that.
Excellent matches
4 · Same water, complementary zones, no conflict.Ocellaris Clownfish
Amphiprion ocellaris
20 gal min · 3.5" adult · Semi-aggressive
Small, reef-safe fish that won't disturb the coral or compete for food
Cleaner Shrimp
Lysmata amboinensis
30 gal min · 2.5" adult · Peaceful
Beneficial invertebrate that maintains water quality and poses no threat to the coral
Nerite Snail
Neritina natalensis
5 gal min · 1" adult · Peaceful
Algae grazer that maintains tank cleanliness without damaging corals
Neon Goby
Elacatinus oceanops
20 gal min · 2" adult · Peaceful
Small, reef-safe fish that won't predate on the coral or compete aggressively
Good matches
2 · Compatible with normal care — watch space and numbers.Peppermint Shrimp
Lysmata wurdemanni
20 gal min · 2" adult · Peaceful
Peaceful scavenger that helps control detritus without bothering the coral
Maze Brain Coral
Platygyra daedalea
30 gal min · 2" adult · Peaceful
Similar LPS species with compatible care requirements; maintain spacing to prevent tentacle contact
Planning this tank?
Run the whole stock list through the calculator — it checks bioload and schooling numbers, not just pairings.