How big are your JDs?? get them their won 30 gal, let them settle down, let them lay their eggs, do their stuff and let them hatch, after about 6 days, take mummy and daddy out and put them into the big tank again, and raise the kids on BBS and flake, if they fail again, leave them to it they will get used to it eventually, 1st time isent always a success :Y: