ภาษาคาราโอเกะSeedlings are inserted into holes in a platform or
raft that is generally made of Styrofoam. Rafts
may be small enough to support an individual
plant or large enough for multiple plants. Roots
from the plants grow into the nutrient solution as
the raft floats directly on top of it. Air is pumped
into the solution to provide the necessary oxygen
for healthy root development.