Hi, my green birds nest colony recently started dying from the middle. Seems that it started shadowing itself over time and eventually started dying off in the center, which then propagated outwards. I fragged off a whole bunch of pieces, so not a huge deal, but wanted to ask if others have had success avoiding this with birds nests. I had the same thing happen like 5 years ago with a similar coral. I know this could be a result of poor light coverage/spread, but I would have thought the t5s I have would be ideal to avoid that type of problem. The colony grew from a small frag in this location, so it isn't from being moved. Any thoughts? Pic below is after fragging, it was significantly thicker/larger when it started dying.
~140g peninsula system with 2 Gen 5 XR15 Blues and 4x54w t5s. Gyre XF350, XF330, MP40. Pretty SPS dominated, but do have some LPS, polyps, softies too. System has been running for 5-6 years, but I totally revamped rock work (replaced about half that had GSP on it) and started doing SPS again in Nov. 2020. Anyhow, things are going pretty well, happy with growth and color for the most part.
Thanks in advance!
Parameters:
Alk:8.5
Ca:420ppm
Mg: 1480ppm
NO3: 12-15ppm
PO4: 0.15ppm
SG:1.026
Temp: 77-79F
~140g peninsula system with 2 Gen 5 XR15 Blues and 4x54w t5s. Gyre XF350, XF330, MP40. Pretty SPS dominated, but do have some LPS, polyps, softies too. System has been running for 5-6 years, but I totally revamped rock work (replaced about half that had GSP on it) and started doing SPS again in Nov. 2020. Anyhow, things are going pretty well, happy with growth and color for the most part.
Thanks in advance!
Parameters:
Alk:8.5
Ca:420ppm
Mg: 1480ppm
NO3: 12-15ppm
PO4: 0.15ppm
SG:1.026
Temp: 77-79F