Lighting required for Cheato?

[banditpowdercoat]

FYI, 3000K lights grow Cheato like CRAP!!!. I cant find anything higher in my town. Had a 5500K, but it died. Chaeto was growing like mad with that, now, its shrunk over 3/4. Red Turf algae grows pretty good with 3000K though

[RuGlu6]

Other then trying a lover then 6500k bulb i am out of options.
May be it a chemistry of the water or who knows what but in my sump it will not grow under CF Phillips 6500k.
Thank you so much though for replies guys !