He'd be about 17".I run 18000K Power Glo sticks on my tanks.I keep my lights right at the front of the tanks with no lighting at the back.With a black back ground I find it makes the tank seem deeper.No use have light bouncing off the back of a fish when I can't see it.Having the light only at the front gives me the blacked out background in my pics without using Photo Shop.follen;2048147; said:lovely markings on the gills how big is he and how do you get the lights like that in the tank id love mine to look like that. good job.