The most effective method is Fire (lvl 10) + Ice (lvl 10). This has a success rate of about 17%. It will take 12 hours to breed and another 12 hours to hatch. The egg will be red with white snowflakes. You must be a minimum of a level 4.
Some other options are:
The blue fire dragon becomes available at player level 9.
There is a blue fire dragon, and there is an ice dragon. So far, there is no blue ice dragon. See the related questions for how to breed the other two.
You have to breed a plant and a fire dragon.
It takes 12 hours to breed a blue fire dragon. :) I still need to learn how to breed this though. Hope this helped.
Fire Dragon and Lichen Dragon
Breed the earth dragon with the fire dragon.
To get a Smoke Dragon, breed a fire and air dragon together.
Breed a Metal dragon and an air dragon, if you don't have an air dragon breed a fire and water dragon.
To breed a seasonal dragon you have to in clued these tree elements:air,fire and plant
Do you mean "How do you get an Air Dragon on Dragonvale?" You have to breed a fire and water dragon
Lava dragon
it could be anything