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I haven’t noticed this but at the same time I’m not sure what to look for.sometimes my hammers get extended or fluffy right before they split and grow two (sometimes threeseparate heads. I dont know if that is what you are seeing or not with your extension.
If you improved the flow recently then it’s a good chance that also improved the coral’s state.has flow changed?
Mi e fluffed up when I improved flow
Yesterday I slightly moved them away from the glass so I assume yes because now the flow pump point in front of it but hitting the glass, as suppose to beside it.has flow changed?
Mi e fluffed up when I improved flow
I have mine low-mid level with a regular flow to keep them swaying not sure if this helpsHuh, and here I am trying to get my torch to extend in general. I never knew too much extension could be a problem.....
I did that recently. Honestly, i think there’s something with the water cuz it always has its good days and bad days.....I have mine low-mid level with a regular flow to keep them swaying not sure if this helps

Wow beautiful, thanks for the replyeuphyllia coral extend /retract based off lighting and flow & fairly quickly in my experience. Higher lighting or higher flow you’ll find they retract more. Less light or less flow you’ll find the extend more. It’s actually what I use as an indicator for the Euphyllia corals and if they are in proper lighting / flow conditions. There are other things that can influence this , ie sudden change in alkalinity, nutrients, pests, for example. But we’ll exclude those for now and presume your stable as far as that goes? I like the flow and overall size they bring to a tank once grown out. It’s why they are my favorite corals. So I prefer to put them in the lower flow/ light part of my tank to pull that visual appeal of why I put them in the tank.
this was started as 1 frag with 1 head. And I look forward to my light cycle where it’s dim and “stretched” for light as seen here.
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