Tagging along here. I've noticed this in my tank also. I bought a purple tip acro awhile ago and the base that has encrusted over the plug is an irridescent green now, it used to be purple? I use RO/DI water and have 2 250W 20k mh lights and only dose alk, ca, and mag. I wonder if its something in the water here?
__________________
Jennifer
|