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Why Genetics Matters for Your Coral Collection
Knowing exactly which species make up a coral collection is essential, especially before using those corals for breeding. In places with relatively few coral species, such as Hawaii, telling species apart by eye is usually straightforward. In other regions, however, corals can interbreed, change shape depending on their environment, or otherwise blur the boundaries between species, which makes visual identification unreliable on its own.
When there is any doubt, genetic testing is the most reliable way to confirm identity. [1] Just as important is labeling every colony and fragment carefully, so that its identity can be tracked over time as it is propagated, fragmented, or moved between facilities. The guidance below is meant as a starting point, not a substitute for working directly with a genetics specialist who can recommend the best method for a specific question.
