Best Kelvin for reef lighting

[marcingo]

Is it possible to put no actinics in one of those flourescent bulb casings that come stock with tanks? Or do I have to get special balasts. Also could I put actinics into a power compact balast rated for 65 watts?

[mark]

Yes, no special ballast for actinics.

Match the bulb wattage to ballast size, a 40W actinic with work in a NO (normal output, 40W) standard hood setup, same with with the power compact, just ensure pin type.

[marcingo]

Thanks.