The worst way to try and photograph fish underwater is by chasing them!
How would you feel if a huge black one eyed monster 10 times larger than you started chasing you in the street for a photograph or perhaps lunch!
To capture these beautiful zebra fish I simply sat under the this collapsed structure and waited. Five minuted of being still rewarded me with this image and no zebra fish were harmed in the making.
Photo: Robert Rath, 'Day 415, Waiting for the Shot' 1/320s f/6.3 ISO640 15mm