Application of limestone-molasses blends in Nile tilapia rearing tanks

The work aimed at determining the effects of applying different blends between liquid molasses and agricultural limestone on water quality growth performance Nile tilapia juveniles, Oreochromis niloticus. study employed 24 indoor tanks 100 L outdoor 250 L. Four control groups were set up (no product applied, only molasses, limestone, molasses-limestone blend with 48% but no fish) two experimental (molasses-limestone 32% molasses), four replicates each. Over 11 weeks, was monitored systematically. 24-h cycle monitoring temperature, pH, specific conductance, dissolved O2 total alkalinity carried out 8th week. accelerated dissolution rate in water. containing led to greater increases pH relation applications. However, applications impaired performance, especially tanks. While fish yield 25.1 g m-3 day-1 tanks, it equal 22.8 (32%)-limestone units (P<0.05). It has been concluded that blending brings clear benefits tilapia’s rearing when compared limestone-only