im starting to see a bit of a problem with this acro the tips are going a brown/purple and is not polyping at the ends there is a tiny bit of red cyano on one branch, there is not direct flow pointing at it the coral is about 11 inchs from the top the lights are 400w 10,000k lumenarcs 8 inchs above water other acro's at that height are doing well
calcium 410
kh 10.2
phos 0
nitrate 2
sg 1.025
mag 1450
anybody got any ideas please??

Help













