Hydroponic Mediums
There are copious amounts of different mediums that can be used to grow different types of plants. Mediums can be man made or organic. Below are examples of mediums.
Oasis Cubes
Lightweight and preformed
Very popular medium from seed or cuttings
Used for propagation
Neutral pH and retains water
Can be transplanted into hydroponic society
Coconut Fiber
Totally organic
Powdered husks of coconut
Large oxygen capacity
Waste product of coconut industry
Superior water holding
Perlite
Mined material, from volcanic glass, rapidly heated to more than 1600°F, water can vaporize and may tiny bubbles
Increase aeration and draining of soil
Used mostly in soil less mix
Used for wick type system
Relatively inexpensive Can be used by itself or with mixture
Vermiculite
Looks like a mica rock, when quickly heated, expands due to generation of inter laminar steam
Used with mixture of perlite (50/50 mix)
Retains moisture
Used in drip type systems
Rockwool
Sterile
Porous Non degradable
Absorbs waters w/o holding nutrients
Composed of granite and limestone melted, and then spun
Formed in blocks, sheets, cubes, slabs, flocking
Soil less Mix
Contains things like Sphagnum moss, perlite, and Vermiculite
Considered organic
Used for wick, recovery and drip systems
Contains fine partials
Retain water well