Pengaruh Kesadahan Pada Media Budidaya Bersalinitas 3 Ppt Terhadap Laju Pertumbuhan Dan Kelangsungan Hidup Ikan Barbir (Barbus Conchonius Hamilton-Buchanan)

Abstract

This study was conducted to determine the effect of hardness on growth and survival rate of barb fish (Barbus conchonius Hamilton-Buchanan) reared in the 3 ppt of water salinity. Fish were reared in three different hardnesses, i.e., 54, 72, and 90 mg/L CaCO3 for 30 days. The results of study showed that fish reared in water hardness of 72 mg/L CaCO3 had higher daily growth rate (1.15%) compared with other treatments. Daily growth rate of fish reared in water hardness of 54 and 90 mg/L CaCO3 were 0.76 and 0.37%, respectively. There was no effect of hardness on survival rate of barb fish.