Corals spreading after light change

[Jakebob]

So I started to see diatoms at the bottom of my tank so I backed off my lights by and hour or two to help counter and since then both my hairy mushrooms have split and my Kenya tree has dropped of 3 new corals, would the light change have done this? Should I leave the lights were they are or turn them back up soon like I was planing ( on for about 6 hrs now)
Any thoughts are appreciated

 

[Coralreefer1]

It’s possible that your lighting is responsible for this, however, there are many other variables that effect corals in a tank from, temperature, salinity, nutrient levels, nitrates and phosphates, turbidity and other water parameter issues just to name a few. Try experimenting it’s your light duration and intensity to achieve optimum results.

 

[PDR]

So I started to see diatoms at the bottom of my tank so I backed off my lights by and hour or two to help counter and since then both my hairy mushrooms have split and my Kenya tree has dropped of 3 new corals, would the light change have done this? Should I leave the lights were they are or turn them back up soon like I was planing ( on for about 6 hrs now)
Any thoughts are appreciated

I wouldn't think shortening the photoperiod by a couple of hours would do this, but I could be wrong. How long was it between changing your photoperiod and the change with the coral?

What are your current parameters? Any other changes or major maintenance done?