Electric Blue Jack Dempsey x Convict
I have a female Convict (I'm not sure of what variety, she has strong blue-green coloring on her fins, and varies from light gray to dark purple depending on mood) and a young Electric Blue Jack Dempsey male. I had purchased the EBJD as a mated pair with another, but she did not survive his courting, and to keep him company I added the female Convict.
She started in a community tank with a male convict, two oscars, a firemouth and some plecos. The pair took over the tank from the bigger fish and successfully bred once before I removed the convicts for the safety of the oscars and the firemouth.
I had thought the fry had all been eaten by the oscars, when a few weeks later I cleaned the canister filter, and found juvenile convicts in the reservoir, happily feeding off the leftover bits of food from the messy oscars.
Scared the life outta me though, as i pulled the filter out and a fish jumped at me.
I settled the mated convicts on one side of a divided tank with a young flowerhorn on the other side. This turned out to be a mistake. When the pair produced another brood the enticing fry darting back and forth across the divide aggrivated the flowerhorn to dig up and dislodge from its fastenings the barrier and kill the father and consume the young fish. When I came home to find this I rescued the female and the remaining juvenile convicts (hiding beneath the fallen wall) and moved them in with the EBJD. He was, after all, about the size of the adult convict, and quite skittish.
This had been fine until a week or so ago when the female convict and the blue started to dance. The one remaining offspring of the last brood had to be moved back to the original oscar tank for its safety (seems contrary, but the little guy is happy as a clam now, and the oscars have ignored him except to say hi the first day).
I now have a number of eggs in a corner of the tank they removed all the gravel from, and constructed a wall of gravel around. Prior to this she had always layed her eggs inside of rock caves, but the blue refused to go inside, I think it was a little too small for him.
There seem to be a larger number of dead (white) eggs than the straight convict x convict matings, but I somewhat expected that from what I know of genetics. Also it seems to be taking longer for them to hatch into wigglers. Been over 48 hours already, but the temp is a little low. . .should definately hatch today though.
I'm very curious to see what these will look like. In particular, I'm tempted to cross the hybrids, or possibly try to back breed with the EBJD father if the coloring doesn't show in this generation.
Thoughts? Anybody seen this cross before? Personally, I think the stigma surrounding hybrids is unfortunate, but understandable, particularly as released hobby fish such as the flowerhorn (a new world hybrid now found commonly in malaysia and thailand) can cause devastating damage to native populations of many other species anywhere they are introduced.