wow the male is huge!
as for the substrate its not a must. but my convict parents sure like to dig in it. and it will hold food for the young fry.
the parents make little trenches and the fry go in them, it seems that these little holes/trenches collect food that falls in them. its almost as if the parents make little feeding bowls for their young. they dig some of these holes near the bottom of the drift wood and rock. its like a mini cave basically for the fry and the parents occasionally. they probably do this in the wild as well.
as for the substrate its not a must. but my convict parents sure like to dig in it. and it will hold food for the young fry.
the parents make little trenches and the fry go in them, it seems that these little holes/trenches collect food that falls in them. its almost as if the parents make little feeding bowls for their young. they dig some of these holes near the bottom of the drift wood and rock. its like a mini cave basically for the fry and the parents occasionally. they probably do this in the wild as well.





