After two weeks of experimenting with led, some updates:
In the last two weeks there have been several changes, some of have been reported, I will summarize:
1. significant drop in water temperature.
2. Increased polyp extention.
3. increase coral growth in some acropora's.
4. No significant color change.The corals were colorful remained unchanged or just cleared perhaps because of the additional hours of lighting. MH were 6.5 hours of lighting and led 10 hours of lighting. brown corals stayed brown but became clearer. I expect more.
5. Algae on the front glass was reduced to one-third or quarter of the situation befor. The reason is probably less lighting on the front glass and less spectrum that encourages algae .
Please note the Acroapora in the middle. Increased growth can be seen in the bright purple areas.
Blue stayed blue. After two weeks there is little clarity in color. No decrease in intensity.
Brown corals which were once in the past a little pink color haven't changed but cleared .
This coral was a brown pink and had no color change yet .
Greens have become more vivid bright under led lighting.
Orange red color looks excellent even better than before (the image does little injustice to coral ...)
I really want to see what led can do to the right side of the tank where there are some corals that I think will respond extremely to led due to their type (badly or great improvement and less static), but this experiment would be too expensive, so I will give up on it until I see significant results on the left side.
I will summarize the last two weeks :
The led technology in my opinion is already in "prime time", I have no doubt. Light intensity shining on the corals is very strong, it can provide full lighting for extra hours and still save $$$. Corals look good and not react badly led light, no color reduction, no tip burns.
I think a combination of LED with colored T5 will be an excellent solution for reef lighting today and the future.
In any case the experiment goes on and I will keep updating.