Birdsnest growth or bleaching?

[Hurricane Aquatics]

Hey all,

Had this frag now for about 3 months. It's been doing great the entire time and growing well. Light change about a month ago, but it is in the exact same par range (have my own Apogee 510) and grew quite a bit in that month under the ATI Straton.

Polyps are still out even on the white end pieces. Have always had the white tips of course, that's normal growth, but they seem to be getting longer.

Know a good amount about SPS, but this just makes me a bit paranoid.

Parameters that matter:

1.026
9.0 KH
1480 Mag
470 Cal
78.5 temp

Phosphates and Nitrates are undetectable, but I do have some Cyano going on in places, so they are there.

Let me know what you think, bad pics, but best I can get.

 

[elorablue]

How much flow is it getting? Direct or indirect?

 

[Hurricane Aquatics]

How much flow is it getting? Direct or indirect?

It isn't getting a lot of flow, indirect. I have a 600 gph return DC pump set about 300gph and an MP40QD running at about 35% in a 40 Cube. I believe the water flow should be sufficient. Always open to other ideas though. The frag sits on the top/side of the rock and the flow comes from the other side.

In other words, powerhead is mounted on the left side with the frag, it hits the right side of the tank and swings back to catch the frag. So it isn't under tremendous flow, but enough in would think.

Thoughts?