Talk:Breeding for Profit/@comment-68.34.133.90-20120530023102/@comment-4944635-20120610225820

Air was the former best cash/time at 250,000/1hr. Iron and Magnetic took the lead with 287,500/1hr. Rust is best for overnight. Breeding the same together will get you the same thing, so getting a Copper is not a concern when using two Magnetics. I prefer Magnetics over Iron as they can sit in the low capacity Lightning habitat, versus losing earnings in higher capacity Earth and Metal habitats which could otherwise hold Panlongs and Coppers/Forges, respectively.