Use an air plenum

curve

fish
inverts
plants
misc
   about
   biotope
   food
   gear
     aquaponics
     decor
     diy
     driftwood
     filter
     hatchery
     heat
     light
     pond
     pumps
       plenum
     racks
     stands
     tanks
     water
   library
   other
   people
   sci
   stores
   styles
   tanks
   vet

Use an air plenum

11-0-Copr_2012_Richard_J_Sexton.jpg
xs sm med lg

encycloquaria.com