Looks like adding A fourth lamp at 15 inches off the sub was a bad move. Since then I've noticed some algae starting to form (staghorn, hair, and brush). Tried everything from h202, manual removal, upping co2, and double checking ferts, no luck stopping it. It still hasn't gotten out of control, thank god, so I shot a pm off to moose to see his thoughts. He said he thought my issue was too much light, so I double checked my charts and heights, and sure enough I had around 60 micromols of par (as far as I can tell). So today I built a temporary PVC bar to suspend the lamps about 20 inches off the substrate. This should give me around 30 micromols of par, and should lower my demands of nutrients. I hope this will help knock out the algae, and I'll post an update in a few weeks. Just wanted to say be careful, these lights are more than capable of pushing nutrients to the limit, leading to an imbalance.
40B High Tech Tank - 10g Shrimp and Moss Tank