LARGE POLYP HARD CORALS
Hard corals are getting easier to keep due to improved technology and a better understanding of the requirements of reef organisms. We look at what you need. Hard corals are the inverts of the moment, yet many still have problems keeping them. They are much more colourful than soft corals and named because they build a hard skeleton which remains after death. These then become building blocks of coral reefs. LPS and SPS Hard corals are of two types: LPS and SPS. These stand for large polyp stony and small polyp stony, though LPS are sometimes referred to as long polyp stony. Sometimes the last ‘s’ in LPS and SPS is also referred to as scleractinian so small polyp scleractinian, as all hard corals, belong to the order Scleractinia.