Resun Corner Filter Pro Cfp650

Triangle shape, easy to hide in the corners 4 layer filtration to provide healthy water to fish - Mechanical filtration by the filter sponge and fine pad of the cartridge - Chemical filtration by the activated carbon to trap particles and remove odors - Biological filtration by the ceramic rings to provide large surface for growth of beneficial bacteria Spray bar to provide gentle and even flow of water Air ventilation to supplement oxygen supply in water Flow direction and flow rate adjustable