給朋友弄的鈣返 http://www.hkaquazone.com/gallery/data/500/1603picture00571.jpg 還附帶第二鈣返筒呢 http://www.hkaquazone.com/gallery/data/500/1603picture00572.jpg 可以用盡出水的co2...還可以增加輸出鈣的含量呢