Olive Tapenade

This was yummy, but I need more detail. I wish the recipe indicated what type of anchovy to use--packed in water or oil? And what size the fillets should be? I'm unfamiliar with using anchovies...the can I got only contained about 3-4 fillets, so I used the entire can, which made the tapenade a little too fishy for me. I think I may have used too much (maybe half a can would be better?). I used anchovies in water, so I felt the tapenade needed more olive oil in the end.