... is the specific medicine for killing algae such as moss and entermorpha, with the features of small dosage, ... and then splash in the dense growth zone of moss.Dosage: use 100g for 1m of water deep ... product is prohibited in case of anoxia.2. If moss dies after using, it is easy to cause anoxia ... of water body; the dead moss shall be removed and meanwhile oxygen shall be replenished. ...