I don't know if this is the right place to put the Help,

But I need Help I have a dying Candy Cane with only two head. One is regrowing But the other is dying and falling apart and VERY small. What should I do. I did water changes already two times in a round. One day and the next day. My Ammonia is still a little high, It's not clear, it's a little green cloudy. My nitrate is yellow, was red, but not anymore.

What can I do with my Dying Candy Cane.? or how do I cut it off?

PLEASE help.. Thanks so much!