you can't breed water dragon and dark dragon so easily,you need mix elements to get them,for example breed mud+dark/dark+mud= petroleum and pirate dragon
HOW do yo breed a poo dragon in dragon city
breed ice and water
Plankton Dragon
soccer dragon
Twind dragon
water and dark
water+ dark
i breed a nenufar dragon and neon dragon,and i get a petroleum dragon.
to get a mars dragon you must breed pure water dragon and pure nature dragon
You get Cool fire dragon
water
its easy water+dark
venom and water poo