I’m no expert with sps by any means, but what I have been told is, start them off lower in the tank and slowly move them up. Mind you this was when I ran halides. So you could take a hybrid approach, lower the LED output a bit and start the sps off in the mid to low range. If it seems like they’re starving for light, move them up. My birds nest is a tank, I had an all spike, it bleached, and came back with a vengeance. I had a digi that I placed too high to quickly and ran into RTN, it bleached, and lost it. If they start losing color or browning out, they’re not happy.