1Quick Results: The aquarium algae remover takes effect quickly, with a significant algae removal effect seen in about 3 , and it can inhibit the growth of algae for a long time. 2Biological Algae Removal: This aquariumalgae agent is a biological agent, added in proportion, has no harm to fish, and can be used with confidence. 3Targeted Algae Killing: This fish tank talgae removing agent is targeted to kill algae, and different algae use different scientific formulas, and the effect is faster. 4Instructions For Use: Add 1ml of this agent in 20L of water every two , and a course of treatment is 5 times, and there is no need to change the water in between. 5Notice: It is forbidden to mix it with other similar products. Please remove the filter material with strong adsorption, such as activated carbon, zeolite, etc. when using it. Item Type: Algaecide Material: Algaecide Purpose: To Remove Algae In Fish Tanks And Aquariums 1 x Algaecide 1 x Measuring Cup 1 x Manual 1. Please make sure that there is enough air for a few hours after the algaecide has been installed. If the fish has a floating head, please increase the air.2. This agent may cause damage to a very small number of underwater plants, such as the underwater plants of the Hydrangeaceae family (Scylostoma).3. It is forbidden to mix with other similar products.