About a month ago we posted this image by Tony Wu of a shoal of banggaii cardinalfish, Pterapogon kauderni, in Lembeh, Sulawesi where they do not natively occur. That post received some skepticism as to how many fish that single image could represent. Well it turns out that Mr. Wu had the inclination to snap probably about 1000 more images like this and stitched it together into a jaw-dropping time lapse video of just a living mass of banggai cardinalfish. According to Tony:
Here’s a time-lapse sequence of one community of these fish, which should help convey how many there are, as well as how active they are in Lembeh
You really ought to see this video on the TonyWu website. The video is a very high bitrate so it takes a while to load but it is well worth the wait.