STN Advice

[trueblackpercula]

Well sorry you are going though this. The first thing that comes to mind is your system is ULNS. With this high light from LEDs and alk swings looks like you are burning your Sps. Check your par and keep alk steady. Also feeding the tank nutrients will usually help Sps that STN from the base up. In addition to that keeping po4 levels at zero when running a ULNS should have an alk at between 8.5 high to 7 low is key.
Hope this helps
Michael

 

[sahin]

Hi Karl, how are the acros doing? Has there been an improvement/recovery?