In other news, I added ~15w of cheap COB leds with 90˚ lenses to up the par a little bit and fix color balance. I always had a goal of making the right -> left (backwards I know, but AIO end to not-AIO end) to have a shallow-to-deeper look. Of course the LTA wanted the far end so I had to raise the sandbed so that's off, but I originally built the light bars so there was a little more blue clustered on the end where the LTA is now. This has worked out, but had some side effects of LTA being relatively dim. And the color balancing was a little more subtle than I wanted, aesthetically I wanted like a 1-5m color shift and I think I got more of a 1-2m color shift
So, left to right, there are 3 DIY led cannons (round 2" heatsinks from heatsinkusa) with a 440nm, 10000K white, and 6500K. Slightly staggered so the 440nm one is ~3" inside tank, directly over LTA; 10,000K is at a ~30 degree angle, halfway between LTA and Sarcophyton, angled towards LTA to balance out the harsh blue, and the 6500K is just to the right of the Sarcophyton.