Jack Dempsey Fish

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Bo has 2 Jack Dempsey Fish.  I couldn’t tell if they are male or female.  I know that I shouldn’t worry, they will figure out for themselves.  But that doesn’t stop me from wondering. Bo seems to think that he has a male and a female, he thinks the one on the left is a male.  The dorsal and anal fins of mature males have long, pointed tips, and the females lack these exaggerated tips.

Canon T2i, EF70-200mm f/4L USM lens, Manual, f/5.6, 1/25sec, ISO 3200, focal length 135mm, evaluative metering, tripod mounted

To be honest, I’m not sure what they are doing. If they are mating or fighting.  The fish was named after a famous 1920s boxer Jack Dempsey, and the name refers to its aggressive nature and strong facial features.

Canon T2i, EF70-200mm f/4L USM lens, Manual, f/5.6, 1/40sec, ISO 3200, focal length 149mm, evaluative metering, tripod mounted

Their colors change under stress, and you can see the suttle changes of color in the video.

Canon T2i, EF70-200mm f/4L USM lens, Manual, f/5.6, 1/40sec, ISO 3200, focal length 200mm, evaluative metering, tripod mounted

Jack Dempsey can often appear shy and they like to hide in cave. This one has a nice log that it likes to hide in.

Canon T2i, EF70-200mm f/4L USM lens, Manual, f/4, 1/100sec, ISO 3200, focal length 163mm, evaluative metering, tripod mounted