Specifications:Type: Mesh/Whole setColor: WhiteVoltage: 110-240VPlug: UK/EU PlugWeight: 508gMaterial: Plastic shellInput Voltage: DC15V, 2.5AMax Power: 30WTDS Ran ge: 50-500 Package included: 1X Whole Set Chihiros Doctor Features:1.Inhibit green algae and promote plants growth•Inhibit phytoplankton initial growth and reproduction.•Activate microelements to promote plants growth•Pro-motion of plants growth activates photosynthesis to stabilize ecosystem.2 Kill the crustacean pathogenic bacteriaAutomatically kill the pathogenic bacteria in the water in each hour through direct and indirect disinfection, which greatly improves the survival rate of juvenile prawns.3 Depend on strong sterilization capabilities effectively kill pathogens•Aeromonas hydrophila Aeromonas "Aeromons hydrophila", herpes, fungal, coli forms and other 99.9% kill efficiency results test.4 Safe because of coexistence with filter bacteria•As there is no residual toxicity, it is limited to aerobic bacteria.•Compared to UV sterilizer, Chihiros DOCTOR does not work steadily so regenerating and recovery of filter bacteria is rapid.5 ALC program is intelligent management algorithm•Aquarium environment changes according to initial, middle, last stage, sterilizing inten-sity and operation cycle is intelligently designed to change by time series.•As ALC program can simply choose a mode according to a aquarium capacity, it is very easy to use.6.The new Chihiros Doctor has integrated 3 application covering usage of aquaticplants, fish and shrimp keeping into only a single Doctor device Q & A:1.How does the Chihiros Doctor works?---It is designed not work all the time, it works bubble come out about every 30seonds2.Does it hurt fish?---No influence to fish, shrimp and plant3.Can it use in marine water?---Only used for fresh water4.How long do I need to clean the mesh?---The new 3rd generation mesh can keep use for long time without clean, but we suggest exchange a new mesh every 6 months  NOTICE:1. If the product is not working properly, please check if the fish tank water quality TDS is too high (adding disinfectant salt or other substances to the water will cause the TDS to be too high). If it is too high, please replace the tap water in the fish tank.2. The product host should be waterproof, otherwise it will cause the host to burn out and not work.