Well I came across a video on youtube which shows some fishermen showing how they use cyanide and speargun to catch ornamental fishes in phillipines for the aquarium trade. You got it! It's was shot by an activists group to show our hobby is ruining the world. Now the end of the video got my attention. Here's what the disclaimer of the video is:
The shot of cyanide fishing was staged. For this movie no animal nor environment was harm....
Now that got me into thinking, is our hobby "actually" threatening the ocean or does these sort of groups go to the extend of stomping on the reefs themselves to prove their point and get funds for further stomping?
Here's the video:
https://www.youtube.com/watch?v=MtMs_6Z_jTE#t=410
And about our hobby killing the underwater ecosystem, this article will mesmerize you
http://www.livescience.com/42814-cor...ic-waters.html
If you still think human can kill something so strong, I don't know what else nature can do to prove us wrong.....