Blue hammer corals
Hammer corals are an iconic large polyp stony coral (LPS) that has been a staple in the hobby for generations. They are found all throughout the Pacific reefs and come in a variety of colors and growth forms.
Hammer corals sometimes grow in a wall formation while other hammers grow in a branching formation. Either variety makes an excellent show piece coral for a reef aquarium however the branching varieties tend to grow more quickly. Some aquarists observed clownfish host in large colonies. This may be suboptimal as the coral tends to shy away from constant contact from the fish.
Hammer corals like all Euphyllia are known to extend sweeper tentacles aggressively when situated too close to other corals. This hostile reaction can damage or kill nearby corals, so it is important to be aware of placement at all times.
Feed it with meaty food or any poweder /liquid base food .
Low / med lighting
Low / Medium flow
level ; Easy
Expect ; One head per frag
Water Chemistry: It is important that proper calcium (420-440 ppm), alkalinity (8-9.5 dkh – run it 7-8 if you are carbon dosing) , and magnesium levels (1260-1350 ppm) are maintained. Raising magnesium levels gradually up to 1400-1600 ppm can help to combat algae outbreaks, just keep CA and Alk in line as you raise the Mg.
Nitrates should be below 10 ppm and phosphates should be below .10 ppm. We recommend doing a water change when Nitrate levels rise to 10 ppm. It is important to replace your phosphate media when phosphates rise to .10 ppm. Media Reactors make the most efficient use of your phosphate media by fluidizing it.