Another Dicrossus sexing and sth about Crenicara

[jose_vogel]

Dicrossus and Crenicara never entered in my country.

Now, I could manage to get 8 juveniles sold as Dicrossus (just that).

They're in a species tank (TDS: 10, PH: 6.0, tank footprint: 40 x 20 inches, 100 x 50 cm).

Their size range between almost 1 inch up to 1 inch (2 / 2.5 cm) but I don't see sexual dimorfism.

I begin to guess if they're Crenicara.

My questions are:

1) at what size the Dicrossus begin to show sexual dimorfism?

2) differences between Dicrossus and Crenicara at this size?


Thanks in advance

 

[Mol_PMB]

In my experience, female Dicrossus may be smaller than males (of the same age) and this is a possible but unreliable way of sexing younger ones.
When they are about 1.5" long, the sexual dimorphism becomes apparent. Until then it is usually impossible to tell.

 

[jose_vogel]

Thanks Mol.

I will begin to feed them just live food in order to accelerate their growing.