Hi All, I've got 3 fancy goldfish and I've just bought Tetra Gold sinking tablets. My question is, how many should I be putting in the tank? I know about the all they can eat in 2 minute general rule but when they sink to the bottom my fish seem oblivious that the pellets are there. I don't really want to net them out after 2 minutes as I don't know if they have all had some or not. Can anyone help? Thanks