Upeshika, M.K.; Deepananda, K.H.M.A.; Herath, S.S.
(Faculty of Agriculture, University of Ruhuna, Sri Lanka, 2019-02-28)
A six-week experiment was conducted to evaluate the effects of calcium hardness on survival
and growth performance of platy fish (Xiphophorus maculatus). Three calcium hardness levels;
50 mgl-1, 150 mgl-1, and 250 mgl-1 ...