today I just upgraded my light. what i was using was too low for corals, I didn't notice that until I replaced this one. the corals color looks much better. also I bought a new coral today, called green yuma mushroom or ricordea, I think. it looks nice. and I just put it in there about 3 hours, it opens well.
HIPARGERO LED Aquarium Light – Aquarium LED Lights 30W. the model is A029 I think. I got it with bunch good stuff from someone who just quit the hobby after 4 months struggle. My old lights can barely reach 50 PAR in air after I checked the description.