Angelfish1 wrote: 咦 師兄,你(或我)誤會了! NO3測試劑我用Sera: http://www.aquarium.org.hk/cgi-bin/ch/topic_show.cgi?id=36747&h=1&bpg=6 而Hagen的是PH值試劑。 補充:我明了,你只是說Hagen這個牌子信不過,不在乎什麼測試劑
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