my tank is up for 5 months (2005). live sand, live rock, put 2 damsels in on the first of Feb. 2005, feb 19, 2005 added a yellow, March 12, added a blue tang and 3 clowns. ( i have snails and hermit crabs also). water.. tep is between 76 and 78, amonia 0, trates 0, trites 0, ph 8.3, salinity...