Aquaponics is a growing approach that takes two efficient systems and combines them to work symbiotically with each other. aquaculture is the system of farming fish (such as tilapia, koi or bluegill) or shellfish, whilst hydroponics is a technique of growing flora beside soil.. How to grow cannabis hydroponically is well documented at this point. there are hundreds (if not more) of resources, articles, and how-to manuals on growing marijuana with a hydro system; not so for aquaponics.the difference between a hydroponic system and an aquaponic system may seem like only a matter of degree, but there are some definitive differences to consider.. Setting up a basic aquaponics system. to succeed, an aquaponics system needs two parts: a place for the plants to grow and a place for the fish to live. these systems work in tiers, and the bottom level is where the fish produce waste. the water makes up the middle level, where bacteria convert the fish waste into absorbable nutrients..