Talk:Eggs/@comment-184.41.74.42-20120730193750/@comment-96.249.10.90-20120731011648

Boosts increase the income of dragons on the same island as the habitat is located, as long as the dragons have the element of the boost and not the opposite element. For example, a fire boost will "boost" the income of any fire or fire hybrid on the same island as the boost; however, it will decrease the income of any cold or cold hybrids on that island. Any fire/cold hybrids (blue fire or frostfire) will have their income both positively and negatively affected - I think it ends up as a negative impact overall.

I divide my boosts over several islands to maximize their effects. I also have one island without any boosts for dragons with competing boosts, because I don't have enough islands for each.