Biotodoma variety are loosely gregarious and you may does reside in communities except if spawning with juveniles particularly displaying a robust societal response when threatened. Several 5-8 some body should therefore become lowest get that tend to mode an apparent dominance steps which contributes behavioural attract towards the observer. Whenever managed when you look at the quicker quantity weakened specimens could become the mark away from excessive discipline of the prominent people or perhaps the category can get fail to repay and you may behave nervously.
Numerous experts enjoys ideal the sexes is actually distinguishable because of the pattern of sideways-orientated, iridescent bluish marks which continue off under the prior portion of the eye with the idea of your snout.
During the people these marks was believed to function unbroken stripes, while in females he’s meant to means a few changeable blotches. It has been suggested that the cause for this can be that ladies reside in deeper liquids when you’re boys like the shallows and are ergo more readily open to loan companies, however, that it appears suspicious given the quantity of juveniles exported.