養水觀念釐清 - 魚
By Elma
at 2016-03-18T10:41
at 2016-03-18T10:41
Table of Contents
如何知道自己養的是硝化菌而不是異營菌呢? 這是我一直想釐清的問題
異營菌成長速度比硝化菌快很多,硝化菌基本上一天只分裂一次
但是氮循環會先從異營菌分解產生氨開始,之後才進入NO2跟NO3
假設異營菌的成長速度是硝化菌的100倍好了
汙染物足夠養出100異營菌的同時,不管產生多少NO2,硝化菌為1
汙染物足夠養出1,000異營菌的同時,不管產生多少NO2,硝化菌為10
不管我養水養多久,濾材當中的細菌比例一直會是100比1?
直接下闖缸魚或丟屍體之類的,汙染物足夠養出1,000,000異營菌時
因為硝化菌分裂太慢跟不上,所以丟下市售的菌粉或菌液
把硝化菌一次拉升到10,000+甚至更高的數量
我的疑問就在這裡,假設在這個情況靠外力(菌粉或菌液)
一次性讓硝化菌成長到1,000,000的話,那濾材中的細菌比例不就1:1?
因為污染極大所以異營菌產出的NO2一定也很高(足夠養硝化菌)
那麼為什麼還是比較多人推薦養水放著自然循環1~2個月最穩
自然靠換水的養法不是會讓濾材中細菌比例成為100:1嗎?
這就是我不解的地方
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魚
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