Q.Fox Tail Palm Crown Is Curving Eastward
The tree was straight up and down until last year, the circumstance of the top is thinner than earlier years with the crown is bending eastward away from a sister palm. Trunk was around 6-8 inch’s in diameter and have been feeding it 12 lbs of palm tree food for years. In the last six months I’ve increased the fertilizer to 24 lbs a year (2 lbs a month). The sister palm is almost doubled the size in diameter of the first. Both get divided doses of 2 lbs of palm tree fertilizer a month. It appears to me the first is starving compared to the second, what can I supplement the soil with to help with the apparent lack of nutrients?

Certified GKH Gardening Expert
There are a number of issues that I suspect. Disease and environmental issues are suspect. Ganoderma butt rot can look a lot like this at the very start, but so can overwatering.
This article will help:
https://www.gardeningknowhow.com/ornamental/trees/foxtail-palm/foxtail-palm-diseases.htm
These articles will offer more information:
https://www.gardeningknowhow.com/ornamental/trees/foxtail-palm