Xenia Close

[aaron7405]

_Hi there I have a Xenia and yesterday was fine and growing but today it just completely close.

I do my 10% water change every week as a clock.

What could couse it and what should I do. I will take a parameter read this afternoon.

Its unther 250 W MH in the mid tank secction, medium-slow flow.

Thanx a lot.

 

[sir_dudeguy]

cant tell w/out water tests...might have high nitrates or something. When did you get it? If you just added it, i wouldnt even pay attention to that right now...most corals are not settled in an aquarium for at least a few days.

Even if you have had it for a longer time...i still wouldnt worry too much...not like its gonna die from one day unless your water was completely horrible, in which case everything would die.

test for:

nitrates
amonia
sg
pH
temp
etc...

 

[Aquarist007]

sounds like perfect conditions--its quite natural for xenai to stop pulsing--just give it a few days.

Is it near any other coral that might be stinging it or using chemical warfare?

 

[aaron7405]

When I saw it like that was just when the ligths went on. I kind of alarm because I have never seen so retract. I use night and moonlight leds. After 20 minutes it was starting to open, it went back to normal after and hour.

But still I put some a little more flow and seems happyer.
Its a small frag but I hope it could grow very soon.

Thank you a lot guys.

 

[Drock169]

Does anyone know if its true that soft corals prefer higher salinity around 1.025/6?

 

[aaron7405]

I think its depends of the salinity of the ocean where they belong. but they should be around 1.023

I think some might live at 1.025 but maybe they do not live as happy as the corect salinity.

 

[Aquarist007]

I believe the preferred norm is 1.024--1.026.

However xenia aren't really reactive to lower levels of salt:

"To address sensitive corals, yes there are certain corals which I would have concern with in this treatment (Seriotopora hystrix for example). This category of sensitive corals would extend to Montipora digitata, Pocillopora sp., and other such hard corals generally exhibiting a fine, dense, polyp structure. Acropora sp. has been fine. Sensitive soft corals such as Xenia, lemnalia, etc.. respond little to the lower salinity. Even the hard corals I have mentioned should be fine down to 1.017, (wiith the exception of Seriotopora) as long as pH and alkalinity are kept at normal levels. I have NEVER lost any coral to this method , though the need has not arisen to use this method with the more sensitive hard corals mentioned. "

http://www.netpets.org/fish/healthspa/parsalin.html