Effect of stocking density on growth performance of African catfish Clarias gariepinus and water spinach Ipomoea aquatica in aquaponics systems with the addition of AB mix nutrient

Aquaponics is the cultivation of fish and plants in a series systems, either one container or separate containers, by paying attention to balance between fish, plants, aquatic microorganisms. One obstacles aquaponic activities that vegetable growth not optimal due lack dissolved nutrients, so further research needed make better plant growth. This study aimed evaluate catfish water spinach performance an system adding AB mix nutrients at different stocking densities. used completely randomized design with three differences densities (150 fish/m3, 200 250 fish/m3) as test animals four replications where was added each treatment. The control density fish/m3 without nutrients. decreased addition while better. rate higher than other treatments. In contrast, all treatments increased spinach, affecting plants.
 Keywords: aquaponics, catfish, growth
 
 ABSTRAK
 Akuaponik merupakan budidaya ikan dan tanaman dalam satu rangkaian sistem, baik wadah maupun terpisah dengan memperhatikan keseimbangan antara ikan, mikroorganisme perairan. Salah kendala sistem akuaponik adalah pertumbuhan sayuran yang tidak karena kurangnya nutrisi terlarut. Tujuan dari penelitian ini untuk mengevaluasi performa lele kangkung penambahan pada padat tebar berbeda. Penelitian menggunakan rancangan acak lengkap tiga perbedaan ekor/m3, ekor/m3) sebagai hewan uji sebanyak empat ulangan di mana nutrien ditambahkan disetiap perlakuan. Kinerja lebih perlakuan kontrol ekor/m3 tanpa mix. Performa menurun adanya mix, sedangkan baik. Laju tinggi dibandingkan lainnya, semua meningkatkan jumlah berpengaruh kangkung.
 Kata kunci: akuaponik, kangkung, lele,