Athosanswered grow question 6 years ago There's no way to tell which strain it is. By the look of the leaves you can tell if it's more of a sativa (thin leaves) or indica (big fan like leaves), but nothing else. Although you can keep the light on 24/0, there's such things as diminishing returns, meaning that the aditional growth you get over, say 20/4 is not worth the added power used; either use a 18/6 or 20/4 light schedule. Good luck mate.