have you seen your blue tang picking at them. On the dead fish is there any signs of being attacked? I would recommend a waterchange anyway and put some carbon in just incase it is something in the water.
__________________
RSM 250. Clownfish, Fox face, Blue tang, Yellow tang, Kole tang, Clown tang, Coral beauty angel, French Angel, splendid dottyback. CUC, softies, lps, sps.
|