請問BRS Media Reactor Running Carbon & GFO是作何用途? http://www.bulkreefsupply.com/store/products/carbon-and-gfo/media-reactors-filter-bags/dual-brs-gfo-and-carbon-reactor.html 填充活性碳跟 po4 吸附劑的, 我也有用, 很方便 左下角那個應該只是杯子而已