Xenia shrinkage/Placement?

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MRRBW

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Hi folks. Still new to keeping corals- roughly 2 months now. Tank is 60 gallon DAS aquarium with in tank box filter (back left). I have a Maxspect Razor 16,000k light over top. Jeabao Wavemaker on the left, filter return on the left facing right, a korelia 750gph in the back facing front, and a Aquaclear canister filter running as a phosphate remover pushing, on the right side pushing flow to the left. I have a few fish, maroon clown who is now 12yrs old (up until 2 months ago my tank was a fowlr), a Lemon Peel angel, royal gramma, orange spotted goby and two cleaner wrasses. Clean up crew are a few remaining blue leg hermit crabs, tuxedo urchin, 12 yr old sea cucumber, bunch of snails and a cleaner shrimp. So I have a xenia colony on the left rock structure, protected from direct flow, on the flat top. It was doing pretty good, growing and then all of a sudden its shrinking and shortening. I have a green montipora capricornus on the right tower that is growing constantly, doubled in size since I got it. Not sure why this is happening, especially since i keep reading how much xenia's grow and are a nuisance and that sps are harder to keep. I appear to have the opposite problem. My parameters are good, calcium is a little low, supplementing frequently and should be back to normal shortly. Everything else is good.In the photos you'll see some algea, but it's a million times better than before bc when it was a fowlr, I let the algae grow on its own. So is it a placement issue? is it too far from the lighting? something else? A little frustrating for me, I really love the xenia coral and how it flows and pulsates. Any insight would be great!
 

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It's sad. I hate losing animals and/or corals. Frustrating too when this coral is supposed to be nuclear proof. I had lost a long tentacle anemone a few months ago bc the clown abused it too much and I nearly quit right there and went back to a fowlr. Alas, seeing photos here and the tank of where I got the frags I continue forward, but man this can get frustrating. A fowlr is so much simpler and less heart breaking. (I think I'm being a little melodramatic lol)
 
I not sure they are dead. Just leave them there is a good chance they will come back. Soft corals have a tendency to do all sorts of weird things like that.
 
I realized too that recently I changed the lighting settings. I used to run 1% actinic overnight and then changed it to completely off with shorter duration lights during the day time. Maybe this is the cause. I just switched it back. Maybe in a day or two I'll see a positive change. I won't move them, following what you suggest Nemesis.
Added bonus of having 1% on overnight, I can see all the night critters coming out. That and the capricornus is glowing nicely with a white edge showing further growth, Love that coral! Hopefully it'll plate nicely and cover the middle of the tank :-)
 
I mix up my light schedule all the time. Natural reefs don't have the same the light intensity every day. It seems to have positive results.
 
Hmm. What does too clean mean? Not enough nitrates? First time I hear someone says my tank may be too clean lol.
Iodide, can you test for this? Is it not provided adequately for in your salt mix?
 
You have to add iodide seperatly. I recommend you use vibrance by aqua vitro. For the test kit you will need salifert iodide test kit. I recommend it as well for its accuracy is good. Sg should be raised to 1.025, xenia multiply in rapid in these conditions. They love iodide and love to be target fed and strong lighting. I grow and sell xenia from my house.
 
I had a similar problem, so what I did is I fragged it and placed it closer to my lights, away from coral and algea and I started dosing a little iodide and the next morning it was fully healed and looking a lot better , try it out
 

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