[问题] 用圆桶过滤一直有微粒杂质

楼主: kimi829 (kimi)   2014-10-30 20:11:17
http://i.imgur.com/Gkqlj0u.jpg
http://i.imgur.com/S8X9V9R.jpg
Tetra ex 90 每一层都是滤材加羊毛棉还是很多杂质,请问正常的吗?
图里的沉木上面是黑毛藻吗?

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