However, the raft based aquaponics system uses a raft instead of growing media that floats above nutrient-filled solution to support the plants. so, for your hydroponic/aquaponics system, always choose a grow medium that serves your needs, gives you the greater yields and is the simplest to maintain.. Leca, otherwise known as expanded clay, is a versatile material that has many different applications including everything from construction to landscaping. however, it has become a great option as an aquaponics grow media because of its drainage, water retention, aeration, and insulative properties. other media options. Hydroponics media bed material properties to look for: aquaponics grow media should be inert and ph-neutral. the size of your aquaponics grow media should be between 12-19mm (½” – ¾” inch) in size. this size provides for a good surface area for the colonising bacteria to grow..
Practical aquaponics provides a range of grow media aquaponic systems by a number of different manufacturers including canna. practical aquaponics and integrated aquaculture technology. have a question? call 07 3200 0272. aquaponics grow bed 585 litres.. Rinse before using – be sure to thoroughly rinse any dust and debris from your aquaponics grow media before using it in your system. ph management – just because your aquaponics grow media is ph-neutral doesn’t mean your system won’t become too alkaline or acidic. the optimal range for most aquaponic systems is a ph of 6.5-7.0.. The growing media in an aquaponics system is dominated by clay pebbles, as they are perfect for the root structure and to maxmises surface area available for beneficial bacteria. clay pebbles are the most common growing media in aquaponics and are also known as clay balls, or light expanded clay aggregate (leca)..
