I been adding my CUC a Little at a time, And the hermits crabs are all doing very well, But every time I add the Mexican Turbo Snails they die in a day or two? Checked my water with a Red Sea test kit every thing looks good I did also check for copper and that was good too. Here are my results : NH3
20,PH 8.0,Phos 0.25, Calcium 420. Any suggestions? I did ask at the LFS
no help they just said that the Hermit Crabs should be dead also since the same things affect them.