I would invest in a rack system if you are serious about breeding, that is if you are still using tanks.
You might consider buying the super cinny, find one that isn't duck billed and is a healthy example, seeing kinked and duck billed babies pipping is probably no fun.
I'm breeding black pastel X black pastel and they have similar issues, but I already have them I'm not purchasing them.
I would however produce my own lucy's, there's nothing like seeing white heads pipping out of their eggs.