Pocillopora Concern

[ORReefer]

Hi new to SPS and recently acquired one green and one purple Pocillopora. Both are still in quarantine (over 30 days now). The green seems to be doing pretty good, polyps are extending and I see growth. However, the purple rarely has polyps out and it's color is not as dark as it was when it arrived. I recently moved it into a stronger area of follow and there is limited/sparse polyp extension from time to time but still pretty bare most of the time. color is also still lighter than it was when it arrived. We've also been giving aminos and reef roids from time to time (trying to target when polyps are out) and that may be helping.

Any other ideas?

 

[ORReefer]

Here's my little setup. Purple is 3rd from left and green is 4th from left.

 

[Gareth elliott]

has alkalinity been stable?
Ime good amount of flow, 250-400 par they just grow lol.

if alkalinity bounces they get unhappy. Enough of a bounce they expel their polyps. As long as this hasnt happened, keep your tank stable and should bounce back.