A preview of the much anticipated free digital guide to reef fish, Fishidea, was made available for download just minutes ago. It was only a year ago that the CoralideaÂ guide was released and we greatly look forward to having the same great convenience of identifying reef fish on the go simply by whipping out the iPod or smartphone. The preview includes dwarf angelfish, butterflyfish, clownfish, hawkfish, small wrasses and a symbol key for recognizing and interpreting the informational symbols. The zip file clocks in at just over 3MB and the site states that the full guide will be made available on October 1st. Head on over toÂ Coralidea for the free download so you can get it while it’s hot.