Shooting in an aquarium has its moments where there are numerous challenges to overcome. Some are easier than others...like unwanted reflections off of the glass. Simply attach a polarizing filter and adjust until the offending reflections are gone. Voila...no one knows you were standing in front of a wall of glass with a horde of others, it looks like you were really up close and personal with no barriers.
This image was processed from RAW with the help of Adobe's CS5. The color tone and temp were adjusted to get read of the hue shifts due to the combination of natural and artificial light sources.
Other than that it is how it appeared through the looking glass there Alice old pal.