Hammer Coral tank mates
Euphyllia ancora
6 rated pairings from the Hammer Coral care guide. Compatibility here means water, temperament, tank zone and adult size all line up — the note on each card says why. Hammer Coral needs at least 30 gallons on its own; every companion adds to that.
Excellent matches
3 · Same water, complementary zones, no conflict.Cleaner Shrimp
Lysmata amboinensis
30 gal min · 2.5" adult · Peaceful
Beneficial invertebrate that removes parasites and debris without damaging coral tissue
Peppermint Shrimp
Lysmata wurdemanni
20 gal min · 2" adult · Peaceful
Peaceful scavenger that helps maintain water quality and poses no threat to corals
Astrea Snail
Astraea tecta
10 gal min · 2" adult · Peaceful
Algae-eating snail that helps maintain tank cleanliness without harming corals
Good matches
2 · Compatible with normal care — watch space and numbers.Ocellaris Clownfish
Amphiprion ocellaris
20 gal min · 3.5" adult · Semi-aggressive
Hardy reef fish; may occasionally brush corals but generally compatible with proper spacing
Neon Goby
Elacatinus oceanops
20 gal min · 2" adult · Peaceful
Small, reef-safe fish that stays in lower water column and avoids coral damage
Use caution
1 · Works in the right setup; read the note before combining.Also recommended alongside Hammer Coral
Species whose own guides list Hammer Coral as a tank mate.
Planning this tank?
Run the whole stock list through the calculator — it checks bioload and schooling numbers, not just pairings.