All of this is very helpful!!!!!!! We've been doing a lot of big water changes to get the nitrates down. Adding a little Tech M after the change, dosing every other day with B-onics and also with the green stuff LOL...can't think of the name.

Lights were moved up from the "feet" to hanging from the ceiling about twice as far from the tank. So it's maybe a foot from the top of the water. We have 2 96 watt actinic and 2 150 watt, 20K MH...and the night ones on at night.

I think one of the problems is that our skimmer wasn't in enough water in the other sump to work properly. We've moved to a larger one we finally got fixed up and the skimmer is on full cycle now. I'll be checking parameters tonight and we'll probably be making another batch of salt water as soon the salt arrives.

Heat from the pumps could be an issue...have two I think (one going into the refugium because we couldn't do it another way...not sure why, but I'm going to talk to hubby about trying to get it down to one somehow).

Dena