I would be afraid of doing this with water in the tank, for sure.
On the lights, I can always adjust - easier to remove lights than add them
I might move to a single 175 in the middle, and the 2 250's on the ends. It's easy to change things up the way I build the framework for the lights. Plus I can easily raise or lower them.
I haven't mentioned this, but I like anemone's more than corals - I'm leaning towards doing most fish and anemone's. I want a nice giant BTA someday, and I need lots of light for those. My one tiny BTA has never really flourished, I think for lack of light.
The tank did get a little warm yesterday with the 2 250's. Up to 84.
I added 2 more fans to complete the airflow cyclce. In through the left top, then into the tank space, then out through the left side. The fans are on the same timer as the 250's.
Running the UV isn't helping keeping the water temp down - but it's helping to keep the water clear, for sure. Long-term I plan to not use it.
Plus, the house is still a lot hotter than normal - every single light is on all day, and the doors are being opened and shut non-stop. It'll be much easier to control the water temp when the house temp isn't fluctuating all the time.
Ellisz, the mushrooms seem to like the 250's - I've never seen them get so big.
I was planning on running two of the lights, probably the 250's, in a shorter cycle. The 175's would be on first, running from say 8AM to 8PM, then the 250's from noon to 4PM. Something like that. Those are just rough times, but I have two separate timers, and wasn't going to run all four through the entire light cycle.
Honestly, I can barely tell the 175's are even turned on with those 250's.
Sump socks are driving me nuts. They're dirtying up every 2 days. I think I need a bigger canister type filter.
[update]
Just back from daily feeding. Here are some pics.
