i have had my reef going for about 9 months now .....the nitrates are still alittle on the high side at 50ppm.....but everything was going pretty smooth.....until recently....i have had an outbreak of a dark purple hairlike algae all over the tank....in fact i have to clean the rocks .....and stir sand almost daily....is this okay....and if not what do i do to get rid of it.....thanks in advance ....



