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He is likely stressed out, shipping is quite hard on livestock.
Other than managing water, little you can do other than just leave alone and...
I am a bit lost
You ask if he’s doomed, why do you think this?
While he’s not fully open, he’s appears far from doomed,
Clams enjoy perfect water...
Can see much, too much blue.
Need pic in natural light, one of which taken from the top.
Put him on a piece of rock, he don’t like sand.
If he does not spread that mantle then yes he is doomed, of course that's where virtually all his nutrition comes from.
Pics might help members...
Hi Erik and welcome.
All tanks work off the same principles, can you show the members pictures.
You’ll likely get a lot of input if we can see...
Looks very much like a manjano, pest nem, kill him, Just like Aptasia
Your water is not in the preferred parameters
Alk should be 8-9 and highly stable
Your phosphates are about 10 times where you should be...
Looks like an anemone to me.
Cyano, if it’s Cyano, blow it off and vacumn it out.
In time, when your tank matured, it will go away
10% consistently weekly is sufficient.
+1 to DaveK feedback.
BTW, you cannot place an nem, she can and will move where she feels comfortable in regards to flow and light.
Welcome to Reef Sanctuary!
Anyone help me understand what white light does in a Reef Tank?
Do corals require “white” light?
I note that LFS are running all blue ( for...