1 reefled 90 or 2 reefled 50 for reefer 170

[Cblair]

Hi everyone, just looking for opinions on lighting for my reefer 170. It will be sps dominant and if i go with reefled over a couple other options should i do the 1 reefled 90 or would 2 reefled 50 be better. Just not sure about how far the 50’s will penetrate into the tank. Thanks in advance

 

[Amantijt]

theres a pretty good BRS youtube video on the reefled 90 with par readings that should point you in the right direction.