OPTIMALISASI KUALITAS AIR TERHADAP PERTUMBUHAN BENIH IKAN NILA (Oreochromis niloticus)

Abstract

This study aims to determine the relationship between water quality parameters and the daily growth rate of tilapia. Research method A case study with a qualitative approach to water quality. The observation period is 30 days. The average fish size of tilapia was 10 g/fish as many as 50 individuals on a single observation. Aquarium size 50 x 30 x 30 cm, with a volume of 37.5 liters of water. The feed used is PF 1000 pellets (PT Matahari Sakti) with a frequency of 5% of the fish weight and a frequency of feeding 2 times per day (morning and evening). The results of the study showed that Morning Temperature ranged from 26.3 – 26.5oC with a difference of 0.02oC. Afternoon temperatures range from 28.3-28.5oC with a difference of 0.02oC. The temperature range in the morning and evening is 26.3 – 28.5. Fluctuations are 2.2 oC. Dissolved oxygen ranges from 4.75 - 5.14 mg/L. The pH of the water is in the range of 6.67 – 6.95 Ammonia 0.057 - 0.36 mg/L. The results of the overall correlation analysis show that the water quality parameters do not have a significant effect on the daily growth rate of tilapia so the water quality parameters are in a good range for the life and growth of tilapia