I just got a set of marine glo light bulbs for my P tank and i LOVE them so far i have the standard bulbs that come with the strips in and they were way to bright so i went looking for something blue or purple and i found these they glow a realy greay color of blue and my RBPs swim around alot more with this lighting then they did with the white light when i get around ill post a pic of the tank with the old lights (see avatar) and the new lights