The aquaponics grow bed material should be light resistant as an excessive amount of light might cause algae to reproduce in the grow media and essentially steal the nutrients from a plants. The fabric of the bed should be clear of toxins as well as metals that could stop working and modify the pH balance of your water. And, of course, the container have to be waterproof. The most typical materials used are plastic, wood, and fiberglass. But concrete can also be used IF it’s water tight and sealed properly. However, if weight is a problem, it’s often best to keep use lighter materials. Rubberized epoxy and liners be useful to ensure the type of material remain secure.
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