在台南很難採得到活沙、活石 是否可用人工硝化菌來代替 設缸以後那些物質的濃度降下來才算穩定，亞硝酸?
OP A Andrew 訪客 2002/11/11 #2 Do expect long nitrite cycle when use these freeze dried bacteria. WHen nitrite drops to zero, then you are safe. HTH!
Do expect long nitrite cycle when use these freeze dried bacteria. WHen nitrite drops to zero, then you are safe. HTH!
