I have this Green Star Polyp piece
which I have had for a few years, it has grown from a small dime size frag to a beautiful coral but then recently retracted mostly and has become bleached, probably due to being without much light and care when I was battling an agonizing GHA issue. I have since overcome that problem and then rest of my tank is doing great. What can I do to help this coral get back its colors. It sits under Blueline 150WATT 20K bulb with two 96 watt actinics.
CALC 400 - 425
PH 8.0 - 8.1
Nitrates undetectable
Phosphaes undetectable
which I have had for a few years, it has grown from a small dime size frag to a beautiful coral but then recently retracted mostly and has become bleached, probably due to being without much light and care when I was battling an agonizing GHA issue. I have since overcome that problem and then rest of my tank is doing great. What can I do to help this coral get back its colors. It sits under Blueline 150WATT 20K bulb with two 96 watt actinics.
CALC 400 - 425
PH 8.0 - 8.1
Nitrates undetectable
Phosphaes undetectable