Comparison between consumption / destruction of eggs of rohu (a) or butter catfish (b) and Tubifex by different size groups of Amazon sailfin catfish. Values are denoted as mean and standard error (mean ± SE) of loss in percentage (expressed as percentage of all stocking densities per treatment, from combined replicates; n = 12). Values above the bar indicate significance level (independent t test). Statistically significant differences (p < 0.05) are shown in bold.