just wanted to pick everyone's mind on their opinion of the best bulb and kalvin for a 250w DE mh. I am thinking of changing my giesmann 13K's for something a little more blue. any opinions? pics would be great too
does anyone have any mixed kalvin bulbs over their tank? I am toying with that idea, however I have in the past had a 10K in bw 2 20K's and there was a huge difference and they didn't blend well
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