The Sun Sun/Grech CHJ-6000 fully submersible pump is perfect for mid to large sized aquariums, small ponds, water gardens and water fountains. Capable of moving 1585 GPH, the CHJ-6000 offers an adjustable flow rate and is an excellent choice for both freshwater and saltwater applications. The small, yet powerful CHJ Series offers energy savings and versatile placement, while the compact design and low-noise output make the CHJ-6000 the one-stop pump for all your aquatic needs.