水草情迷

請問濾桶出水口用雨淋管定係鴨咀不易流失co2呢?
兩者有什麼優點&缺點呢?

跟據Aqua Journal Vol 35 (英文版)提到雨淋管(Spraybar)無論置於水面上或下，都會這成Jetting effect (噴射效果)這樣會將植物養份氧化及加快CO2流失。出水口應話越慢越好。原文如下:
Spraybar is not recommened for your planted aquarium- the spray jet , whether positioned above water level or down in the tank causes a jetting effect which will oxidize plant nutrients and dissipate the much needed CO2. The best way is to return filtered water as slowly as possible.