plants in coconut husk?

[DonLisk]

Yes. You would need to have an area below the substrate to allow the water to drain off and not cause the soil to be saturated and rot the roots of the plants. Usually hydroballs, or a layer or gravel/stones, or a false bottom made with eggcrate is used. The layers are separated with substrate screen or window screen material to keep the layers from getting mixed together.

Look through some of the build journals for some ideas.

[matt palm]

for my american toads i just put about 1 1/2 inches of rocks down then 3 inches of dirt on top would that basically be good enough except i would put coco fiber

[DonLisk]

It would work just fine but put a sheet of screen material separating the coco fiber and stone.

[HerpDerp]

What I do is I just keep the plants in a small pot and then cover it up with the eco earth so you can't see the pots. Looks nice and they can't get uprooted.