BTW, how do you adjust the white balance for actinics. I was given instructions by jennifer24 months and months ago and was unable to make it work. Mine has presets and one option to photograph something and use it as the basis for the hwite balance. I was told to photo a white plate in the tank with the actinics on and use that as the white balance. I still kept getting very unattractive pictures (rocks were bleached white and everythign else was too blue to make anything out). I haven't played with it in a while, but would like to figure it out... I'm using an HP 850, so manual options are almost nonexistentent.