Well, from some breeding reports I have heard, these are mellow in context
with other JDs. That meaning the electric blue fry are prone to bullying by
their normal JD siblings, often to the point of death. This could be
related to the perceived fragile nature of this color variety, and certainly
it would not be uncommon for a mutation to affect the vigor of an animal.

Interesting concept. So if they don't have their normal JD siblings to
bully them....they in turn aren't as aggressive as normal JDs.

But being mellow in relation to other JDs of similar size does not mean
they are community fish. They are still cichlids after all, and cardinal
tetras will be viewed as tasty tetra treats as soon as the JDs can fit the
tetras into their mouths.

That's what I wuz kinda figuring. I plan to separate them as they get
bigger (or if my tetras suddenly start disappearing).

Thankyou for your help

Dave