Originally Posted by Lupin
You have to realize leopard danios are simply sub-species of the zebra danios. They never existed in the wild at all.
they are not a sub-species they are, like the long finned versions, man made morphs. it is all in the scientific names
= zebra danio
Danio 'frankei' rerio
= leopard danio
the 'frankei' refers to the guy that created the morph.
they only problem I've encountered in keeping any danio with their longfined counterparts is the normal danios tend to nip the longfins.