Clamp light question

[birkhoferfan15]

I bought a clamp light to put over my Chaeto and I got one of the spiral bulbs that is 42 watts and equivalent to a 150 watt standard bulb, 2700 lumens output and I wanted to know if this would be enough to support my fuge? Thanks in advance for any feedback

 

[xeniaman]

cheato can grow under many varieties of bulbs, check to see what the kelvins are on the bulb. Also check out Melev's reef, he did an experiment with two different bulbs and he found that the higher the kelvins are the better the growth of the chaeto. The more yellow the bulb is, the lower the kelvin is. You want the white/blue daylight bulb