DINAMIKA KUALITAS AIR HARIAN PADA KOLAM IKAN NILA DENGAN SISTEM AKUAPONIK DUTCH BUCKET DAN DEEP FLOW TECHNIQUE

Abstract

Aquaponics has the concept of uniting aquaculture (fish farming) with hydroponics (plant cultivation using media other than soil). The aquaponic system can improve the quality of pond water, thereby increasing the survival and growth of fish which in turn can increase the productivity of fish farming. This study aims to compare two aquaponic methods in improving the water quality of tilapia ponds on a daily basis. The two methods are the Deep Flow Technique (DFT) and the Dutch Bucket System (DBS). The research method used was descriptive experimental with field experiments, with the first treatment (A) DBS, and the second treatment (B) DFT, and repeated 3 times. Observations were made for 30 days, at 06:00; 12:00; and 18:00, which consists of water quality in the form of Dissolved Oxygen, pH, temperature, Total Dissolved Solids, ammonia levels, and nitrate levels. The conclusion of this study is that it is proven that aquaponic ponds using the DBS system have better water quality in daily measurements, compared to using the DFT system, this is due to the planting medium used by the DBS system using hydroton which can help become a mechanical filter. The DBS system in this case has two advantages at one time, namely as a biological filter (plant) and a mechanical filter (hydroton). Meanwhile, the DFT system only has the advantage of a biological filter that helps absorb ammonia and provides nitrate for fish. Keywords: Aquaponic, Deep Flow Technique, Dutch Bucket System, Tilapia A