<a href=showthread.php?s=&postid=6496132#post6496132 target=_blank>Originally posted</a> by Entropy
I agree with the above. Lighting is not very important for coralline, in fact I think brighter lighting (like halides) actually slows coralline growth. My old refuge (20g) had almost complete coralline coverage (at least 80%) and it had a 8 year old 20w daylight bulb over it from my freshwater days.