Suspension and microporous aerator high corrosion resistance , long service life, saving energy, ... at the bottom of the pond increaseed.And this aerator can prompt the water cycle by its energy which ... and at the bottom tends to be consistent2.Natural bait feed increases, can save more than 10%,3.Water ... vitality,then be transpoted not easy to die5.An aerator can cover the area of 5-8 mus, excellent ...