Hi Bito-board,
Just finished my overly expensive 6000 gal puddle, and dropped only 3 of these suckers in a couple of days ago. Almost can't see the bottom now, kinda milky, but the tester fish love it, instead of being skittish, they almost follow you around now. Must have brought down the ammonia. Anyone else have experience with these mysterious pellets?
Got these from Taro (Kodama) a year ago...
"New Water Bio" 
A follow up water making question -- do the clay additives settle/crust eventually in the pipes?