Butterflyfish are easily observed by snorkellers and divers, in all regions of Fiji.
Counting Butterflyfish tells us a lot about coral health and water quality
Coral animals need good water quality and temperatures between 20 and 30oC.
High numbers of Butterflyfish reflect good coral health, which in turn reflects good water qualityMost Butterflyfish feed in or on live hard corals, and so depend on reefs in good condition.
On healthy, live reefs, we would expect many different kinds of Butterflyfish, but if reefs are unhealthy, we may see a drop in numbers and variety.