In this article, Lighting for the Planted Tank, Karen Randall says "Red light encourages long, “leggy” growth, while blue light encourages compact, “bushy” growth." I have read where others say the same. The statement doesn't ring true to me, but I have no other basis for disbelieving it. Is it true? The whole subject of light spectrum vs. plant growth seems to be a myth-filled one to me, but I lack the experience to figure out where the myths begin and the facts end.