Is my Xenia dying?

[Johnny'snewreeftank]

My 90 gallon Tank was cycled for 5 weeks, started to stocking, at 4 months I had a bad cyano outbreak, phosphate and nitrates were low but registering, bi-weekly 20% water changes have been maintained. I started Dr. Tim's Refresh (every other day for a week), turning on the skimmer on the off days. About 50% of the cyano disappeared. I then switched to Dr. Tim's Waste Away(same schedule dose one day run the skimmer the next). After 2 days my Xenia looks like he is dying.... Is this caused by My dosing regiment or just the fact the phosphates and nitrates are now very close to zero

 

[sixty_reefer]

What’s your current parameters, xenia tends to thrive in higher nutrients tanks

 

[reef lover]

#Welcome to r2r ! Yup as said above they like some nutrients.

 

[Uncle99]

Xenia is not going to like low/no nutrients at all.