These pictures are taken using expodisc pro digital white balance filter (
www.expodisc.com)
I'd custom the white balance set up on my camera to light sourches and water spectrum of the aquarium so it will appear exactly like what our eyes seen on the spot .
Using Ef50f1.4 and EOS1D mkII , the fish is my 3 years BloodRed (63cm) ,light sourches using 2 submerged OceanFree (standard) and 1 studio flash w/softbox
the black spot scar on 5th row scales at FW body are scar from motoro ray stinger when they'd fought