Board Thread:Dragon City Gameplay Questions & Answers/@comment-2600:1700:F4E0:8240:ADB6:6DF6:49A3:E2E4-20181124085100

I have my Tropical dragon (part terra/plant) in a plant habitat and it is within the radius of the crystal, but it doesn't get the 20% boost. Why is this and is it just a bug? 