How long does it take for color to return

[JOEYRM7]

I'm one of those who got lost chasing a low nutrient system and ended up starving my corals. Bottom line is that I lost a few but most have come back after I started feeding the tank while increasing export. For the past 2-3 months my NO3 is 4-5 ppm with PO4 at 0-.02 ppm Rest of the parameters are perfectly in line and I use an ATI powermodule for lighting. My last two stragglers are a red dragon which has come back at least to 50% but my concern is over a tri-color. The florescent green polyps have reappeared but the rest of the coral is a dull color of, not quite purple, and there is no noticeable growth. How long should I give this one to recover before giving up? It was a beautiful coral when I got it so it is in prime spot. Thanks

 

[Wazzel]

It could take months for the color to come back. If it has polyps I would not give up. The color will come back.