When I take photos, I use the EcoSmart Live app and "slide" my Radions to a setting of 14,000K or 13,500K.
The tank itself looks very washed out, but the camera still picks up enough of the blue light that the photos look like the tank under my normal schedule.
As far as the camera, I use a Canon SL1 with the Aperture Priority setting (Av). Sometimes I dabble by tweaking the settings just a little, but I'm not too savvy when it comes to understanding photography terminology and practices.