Ok. First off I'm sure that in the end you will want Tom's advice, but in the meantime I would suggest bringing up your FE to 1 as opposed to .25. I know that my swords are FE sucking whores and I need to keep my FE up in that 1-1.5 range. The second question will be how can you be sure your FE readings are correct. I suggest that you just rely on what your mix is supposed to deliver and trust that. If you have a great FE test (which the existence is always in question) then you can test and get your FE up. With that much light the uptake of all your Mics will be huge, so it may need a daily dose of FE and Trace. That's all I got....... btw, what size is your tank?

Ziggy.