hello fellow reefers i am starting up a 40 breeder,now i have a 29bio cube the lighting in there seem to be alright. it is doing the job. 10.000k and a blue. i do like the lps a little more then the sps witch i will be putting in the new tank with a few sps. with that said there are more lights out there just do not know . i would like some professional in this matter . thank you chris