13 watts per gallon may be over kill. I use half that on my 12.
I doubt it will hurt anything and you can prolly support any corals u want with that much lighting. But you should wait for a more experienced person to reply.
well the thing is my step brother had a 29 gallon tank saltwater,so he stop,then he gave me his corallife lights..so i decided to put into my 10 gallon,,,and yes i did say to myself thats to much light,,,but my temp is steady at 79...