How many wafers are you suppose to feed a BN a day? I feed my BN Hikari Algae Wafers and was just wondering on average how many wafers you put per adult BN (size about 4in+ or 12cm). Is it about half per adult? So if I have 4 adults then I feed them 2 wafers? And if I feed them twice a day I divide this amount by 2? Thank You