Salinity Refractometer for Seawater and Marine Fishkeeping Aquarium 0-100 PPT with Automatic Temperature Compensation

【80GPH GRAVEL WASHING】Equipped with aquarium gravel vacuum washing tube. 80GPH water flow, suitable for gravel cleaning in small fish tanks, also there is flow regulating clamp to control the water outlet flow. And with built-in filter baffle to block small fish and gravel to be sucked out. 【MULTIFUNCTION】: ① Dirt Suction. Gravel Vacuum for Aquarium equipped with a duckbill suction inlet accessory, and it is easy to suck the feces away. ③ Water Changing. 79in long high quality pvc hose can meet the basic use. The water level of the first press operation can be as low as 6in. The lowest water level line can reach 0.8in. 【SIPHON WORKING PRINCIPLE】: No need to be plugged in(electricity), manual operation, by testing at the fastest it only press 3 times, and the water can be auto flowed, complete the water circulation from the inside of the tank to the outside, and take away the impurities on the sand and gravel through the water flow.

【3 in 1 Function】: ① Dirt Suction. Gravel Vacuum for Aquarium equipped with a duckbill suction inlet accessory, and it is easy to suck the feces away. ② Sand Washing. Aquarium siphon with 3D Filter Basket Net, protect your love fish and small gravel from suck out of the aquarium. ③ Water Changing. Built-in dual airbags, atmospheric cavity, good resilience, effortless operation. 【Working Principle】: hygger's unique patented design --- equipped with a handle type manual press, which has more operating space and saves labor and brings convenience, by testing the fastest speed is to press 7 times. Sand Washer has 2 thickened airbags inside, which can pump water quickly. And using PP ABS materials, resistance to extrusion, do not worry about airbag damage and leakage, can be used for a long time. 【Easy to Use】: Push the siphon switch of the aquarium siphon vacuum cleaner several times, and make sure that the inlet tube part is full of water, and then observe the outlet hose. After the water continuously flows out, you can stop push and observe whether it will automatically. If not, continue to operate until the water will flow out quickly and automatically. The sand can move up and down in the extension tube to remove debris from your aquarium.

Including: Aquarium Fish Tank Clean Algae Scrapers 5 in 1 and Fish Tank Gravel Cleaner Siphon Vacuum for Water Changing and Sand Cleaner. Aquarium Fish Tank Clean Algae Scrapers 5 in 1 includes: fish net, gravel rake, scraping algae, fork and sponge brush, can be easily assembled and disassembled with the strap. Fish Tank Gravel Cleaner: Easy-to-use water change and sand clean, keep your fishes safe.

✔【Upgraded 6 In 1 Multifunction Aquarium Gravel Cleaner】The upgraded aquarium gravel vacuum cleaner have 6 in 1 functions with water changer + sand washer + debris cleaning + water filter + water shower + water flow. Suit for freshwater and seawater and various depth fish tank. ✔【Strong Power】The 110V/28W powerful water pump motor can provide the maximum flow of 1700L/H. It only takes 0.5 hour to pump out a 180-gallon tank. At the same time, the pump flow is adjustable. ✔【Powerful Cleaning Function】It can be used for clean gravel, absorb dirt, change water, wash sand, suck the stool. Strong Power with Suction enough to change water, suck food debris & fish poop out of aquarium quickly.