Cheapest lighting cost for SPS coral

[imisky]

you are going to get alot of opinions in this thread.

IMO if you can DIY your own LED lighting that would be the most cost effective in the long run if none of your LEDs burn out before there lifespan is up that is.

if thats not the case and your not very handy with electronics then look into MH as you only have 1 bulb to change every year or so compared to T5s which need to be changed out at 9month mark usually for the best PAR values.