Oh probably a year. Some say if you mount the stock vertically they grow better. Mine is horizontal there and seems to like that position. My other frag is in the middle and kind of squeezed by the sinularia so it has not grown very much there. Probably 125 parI want this coral in the tank I am designing and it was good to see the placement below a ledge of sps. How old is your colony? It has grown in beautifully.