Blastomussa Coral Care Guide

The Blastomussa coral is a large polyp stony (LPS) coral. It is often referred to as a "pineapple coral."  A striking coral to behold, Blastomussa corals appear in shades of red and green, but can appear mottled with other colors as well. There are 2 types of Blastomussa corals, the Blastomussa merletti and the Blastomussa wellsi. The main difference between the Blastomussa merletti and the Blastomussa wellsi is the size of the polyps. A Blastomussa merletti has smaller polyps which will usually max out in size at 1 inch in diameter. A Blastomussa wellsi has larger polyps that will range in size from 4 to 5 inches in diameter. Both species of Blastomussa coral require similar care. 

When deciding on where to place your Blastomussa coral, consider lighting and water movement requirements. Blastomussa corals should be placed in your aquarium where there is low flow and low to moderate light. They are likely to do better in a spot with lower light than one with high light. We recommend 100 PAR. When exposed to too much light, sections of their polyps become irregularly inflated and bubbles may form inside of the flesh. Too much flow may damage their polyps. It is recommended that a Blastomussa coral be placed on a rocky substrate to limit the sand settling on the polyps if your tank's inhabitants are known to kick up sand.

Through their symbiotic relationship with a photosynthetic algae, known as zooxanthellae, they receive many of their nutrients. They also filter-feed on the nutrients, brine shrimp, and krill in the water column. To maintain good health, calcium, strontium, and other trace elements should be monitored and added as needed.

Blastomussa corals are usually peaceful, but can still sting corals that are positioned too close.  Anemones, mushroom polyps, and many other corals could potentially damage the polyps of a Blastomussa coral, particularly the large polyps of a Blastomussa wellsi. So, be sure to give them some space to grow and thrive safely.

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