VRWC;3825838; said:absolutely. look at this male.
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neither of those two characteristics are ways to tell the sex of festae...different locales & different strains of the species look completely different than one another and the heads are different looking. Look at the festae strain in Australia. It looks different than those currently being sold in the trade.
Color can differ according to stress level, tankmates, food, spawning or not, genetics & more. The male above is 4 inches and look at its color.