[RussC]

Yes, when I first received them they looked happy acted great. The diatom issue occurred during the time they were in the tank. I actually increased the light 2 hours instead of reducing the light in hopes of promoting the diatom growth to starve it out. It worked! The tank is only 2 months old, so silicates is my number one culprit with my rocks and substrate. Diatoms are pretty much gone. I've got some light hair algae, but nothing serious. All my top offs are done with RO/DI. And I do a 20 gallon water change every two weeks. Right now the load in my tank is so light I'm able to maintain very steady parameters with just a water change.