I have a frag of pokerstars that grows like crazy. Its in the middle of the tank under 250w halides and 4 t5's. The green polyps are perfect but the base lost all of its blue. My parameters are salt 1.026, calc 425, alk 10.3 and the bad stuff is at 0.
Any ideas?
Any ideas?
but a tiny bit of blue on the outer rim...


