Potassium level in serum of Nile tilapia (O. niloticus)in KMnO
(c) and FCA (d) treatment group, compared fish with the infected group challenged withs. feraxzoospore 2x104, and control group. N=8 fish/sampling time. Values are reported as mean ± SE. Values with a different letter superscript are significantly different between and within groups (p < 0.05).