I like that idea. How much are you running in your system? I've seen little tubs at Tong's, wonder how many I would need?
So far the tank has stayed between 78--79F. I got both my Vecton 400 UV and Reactor online in the last 24 hours and I've hit 80.9F. When I open the stand it feels pretty cool, makes me wonder if my convection attempt is working. I'm looking at wall mount options for fans or adding cross bracing to my current L channels so I can mount my 120mm Noctua fans to my light rack. I'll say my water was hazy before that UV and it's already clearing up pretty well.
I need to mount some type of top trim (out of rock) to my wrasse den, they have kicked about 1/2" of sand out of it already

but found it in the first day. Both fit in there so far without issue but I'm maxed out for sure.
I killed 1 mp40 for a bit near the blue period tonight. All anthias came out from the rock and started swimming around. I think to get flow at the end of the 4' I'm needing to crank the mp40's up to the point where it's too turbulant in the first 1/2 of the tank. I'll be adding a gyre or preferably my Tunze stream 3 if it isn't to much of an eye sore or create additional heat.
My clowns and nem are going to a buddy's tank. Once that happens I'll be working on the final rockscape and I'll start placing acros in permanent spots.
Nitrates are 25ppm and phosphates .26 That's about where they were in my 180. So the browning isn't nutrient based.