What about the beamswork LED fixture? It’s priced very well
I'd consider more on the line of simple track lighting above the tank..
If you can suspend a light a foot to a few feet above the tank some cool LED floods are available..
Most aren't programmable but simple wall dimmer could be added w/ the right choice of bulbs.
Still need an off/on timer though..
Need to match the beam angle w/ the height available/desired.
Relatively cheap though would need about 4 bulbs..
I was going to start w/ what I consider "the best" but the color temp choice is getting quite limited..
but as an example here are a few 4000k bulbs..
At 25 degrees you'd need to be about 3ft off the water line (front of bulb to water) though..
I'd do 4 and of course would need a track/sockets..
Sorry, doing a bit obsessing on Sorra..
@ 60 degrees.. 11/2 ft works or so.
Heights are estimates and would need tweaking ..
suppose I need to sort of spell out their advantages..
Violet base so spectrum goes deeper than most lights and RGB phosphors allowing a larger spread than RGB specific leds..
the cyan part in part. helps w/ shades of green..