depends on if you want your frags to grow really fast or to look really good. 3x 400W-10K or 6.5k bulbs would be best for growth. if you needed to change your t5's too, 2xactinic 2xfiji purple would probably look best with the 3 10K or 6.5K. but 4x10k t5's would make them grow even faster. but a mix of 13k-15k MH bulbs look much nicer.
|