Astrea curta corals are ‘small, moderately plocoid [flattened], distinct, and almost circular’ according to Sea Life Base. Normally grey-green in colour, you can see from the images here, ours are often beautiful rich gold, although they do vary. They have a neat growth habit and button-like corallites, which can grow in columns, spherically or flattened. Large colonies of these can form gorgeous undulating bumps (images below).

You can find other posts featuring different coral species, here:

• Gorgeous, boring and brown! Montipora spp.

• Feisty zingers! Focus on the 'brain' coral, Paragoniastrea Paragoniastrea spp.