Ok so I have a topfin 55gal that comes with two hoods each able to hold one bulb currently I have a blue actinic light that I use for nighttime in one and a regular bulb in the other my question is can I run the blue light all night long or will it mess with the fish having constant light in the tank? Can anyone help me out with any help possible thanks? I run my daylight until 6pm then cut the daylight off and run the blue light untill midnight, is this ok?