finally plugged the cfl's into the same timer as the big lights; the timer held up and no large sparks, so i'm good. Also, since I only have 1 14" air stone, I also connected the secondary water pump (one used for rez changes) into the flood pump's timer. Now, when the flood pump fills the tray, the 2nd pump will also turn on. It doesn't have a hose connected to the output, and it's just sitting in the rez facing up. When it turns on, it shoots water at the lid of the rez, and splashes like mad coming back in the water. Since waterfalls are used for oxygenating water as well, I figured this might help improve O2 in the water some.