Q&A 1、How long the Algae removal will work? Algae removal device is different according to the cylinder, the volume is different, the working  time is different, the specific depends on the specific situation, the only thing that can be  determined is that the algae removal device is not always working, will work after a period of time  to go to sleep, and then enter the cycle work. In addition, the ordinary algae removal device has  no memory function, and needs to be reset after power off. 2、What problems will occur during the use of algae removal devices? 1)The device will turn off antomatically after we turn on the device. ----As the TDS is high, taht  mean there is many impurity in the water, maybe caused by the disinfectant you used.  ---You could change to the clean water to try it again.  2)The improper methods to change the water or don't take off the item may cause the water into the  item, then the product board will be damaged by water oxidation. ---There is a waterproof plug in the product, please don't ignore the waterproof plug. 3)The problem with the adapter, the adapter is the item we need to take cafullly. If the adapter  cannot use it may be the violence trsaction, any violent behavior will cause the damage of the  adapter. ---Please take it lightly and cafully. : ) 4)The problem of the mesh replacement,this item has service life. When the TDS value is too high,  the consumption will be faster. You may need to change the mesh replacement every 2 months, the  real condition may depend on how you use it. If the TDS is high, you may change the mesh  replacement one month or more earlier.  5)How does the Chihiros Doctor works? ---It is designed not work all the time, About 10-15 minutes to work once，it works bubble come out  about 30 seconds 6)Does it hurt fish? ---No influence to fish, shrimp and plant 7)Can it use in marine water? ---Only used for fresh water， Do not use in water with TDS above 500，Prohibit the use of breeding  high density breeding tank 8)What is TDS? It means total dissolved solids, the impurity is more, the TDS is higher. TDS values can be  measured with a TDS test pen. If you have any further questions during the use, pls feel free let me know. I will happy to  service for you. : ) Introduce: After 2 generations of Chihiros Doctor product development,the new generation of CHIHIROS DOCTOR is designed to replace the previousversion which offers only individual application for one Doctor's device. Now the new Chihiros Doctor has integrated 3 application covering usage of aquaticplants, fish and shrimp keeping into only a single Doctor device Maintaining functionsof restraining and suppressing algae growth, promoting growth of aquaticplants, protection for fish and shrimps Constant elimination of pathogenicbacteria and precaution of biological diseases, etc. CHIHIROS DOCTOR simplifies the complex ecosystem, and simplifies the operating steps, which greatly promotes users' experience by integratingall operating mode for different aquarium water volume into a single device Covering up to 90% aquarium sizes in the market, hence reducing users' cost ofspending and offers them greater convenience to take care of their beloved aquarium   Feature: 1 Inhibit green algae and promote plants growth Inhibit phytoplankton initial growth and reproduction. Activate microelements to promote plants growth Promotion of plants growth activates photosynthesis to stabilize ecosystem. 2 Kill the crustacean pathogenic bacteria Automatically 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 intensity 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. We only accept Paypal . PayPal is the only online payment method we accept. Please make sure you have a valid/confirmed PayPal account prior bidding. Payment is expected within 5 days from the end of the auction. We send all the items are based on your paypal address. Therefore, please make sure your paypal address is valid. * International Buyers Please Note: Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyer’s responsibility. Please check your country’s custom office to determine whether these additional costs will be prior to bidding / buying. Notice 1.We usually send the parcel according to your leave address. Please make sure that's the right delivery address. If you need change the address, please contact me in time when you pay for us. 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