Large Hammer Coral Colony Not Extending HELP

[tjclapp]

Hello all, I have been dealing with this issue for 2-3 months now. I have a waterbox 170, set up with no skimmer and just refugium.

Parameters:
Nitrates:2.5
Phosphates: 0.2
Calcium:460
Alk:9

I have flatworms that are eating at coral, but I dip every week and they are hardly on the corals. I didn’t find out I had them till about a month ago and when I dipped all of my euphylia there were tons of flatworms. Only ONE hammer colony is not absolutely thriving. It is just opening but hardly extending. Tried low flow, medium flow, high flow, doesn’t matter. It is near other euphylia that is just near perfect. Cannot figure it out!

 

[P-Dub]

Patience. Some corals are more sensitive than others. Give it time. It doesn't look bad.

 

[huckjai]

My hammer coral likes lower flow. It doesn't extend as much in higher flows. Are you still dipping them every week? If so, could be the stress from it and constantly being moved.