Sounds like you are running lights with bulbs?
This link might help:
Aquarium Lighting Information Guide | Reef Planted | PAR PUR/PAS
The lower the "K
", the more yellow, then red the light appears, such as a 4500 K
The higher the "K
", the bluer the light appears, such as a 20,000 K
Sometimes just running a blue light at front of tank will "hide" the more reddish lights at back.
Just watch for algae if you change lights. Here I try and change lighting gradually just in case.