Guerry the reason I ask is because sps get between 95 to 98% of their energy budget from light, withe system you are running it is reducing the amount of zooanthellea with in the coral. That algae is what converts the light to usuable energy for the coral.
Now having said that the coral also have means by which to gather in resources by capture to help in that energy buget. The way they capture food is by slime netting, so they spit out slime from just under their polyp, allow bacteria and similar to feast on it and then reel it in an feed on that.
So in watching you progress I kind of want to see if the coral is making that change over?? if that makes sence?? as in doing more slime netting to make up for the reduction of its zoox population. Its something that I have always wanted to observe with folks that use that system. Interesting stuff.
Mojo