need help with xenia

[albie611]

my small xenia closed up afew days ago and i dont know what to do. it was doing great and all of a sudden its closed and not pulsing. every once in a while i see the branches open a little but not like it was . its not white or dying yet but it does'nt look good.

i did a 20%w/c and tested the parameters.
all seemed good.
SG 1.024, ph 8.2, amonia 0, nitrite 0, nitrate 10. phos under .2, calcium 440, alk 13 dkh.
any body know what i should do next to prevent it from wasting away. any advise is greatly appreciated

 

[siren]

alk should be at about 7-8 dkh, xenia are SUPER sensitive to alk

 

[GSMguy]

its fine it does this sometime it always comes back your in trouble when it starts melting

 

[GSMguy]

its fine it does this sometime it always comes back your in trouble when it starts melting

 

[sharky_steve]

But mostly xenia is very sensitive to any abrupt water parameter changes. No sudden pH of alk changes!

 

[darkside1]

I have an Anthelia that has closed up not slimy or discolored just a large circular patch in center of colony deflated 2 days now ,,,
is this normal??

 

[siren]

what are your chems at?

 

[darkside1]

Its a fairly new tank..... I have been out of the hobby for a few years and started up a 70 gal + refium etc... lots of light
but the tempurature has crept up past 85 I didnt notice it .....
back to 81 now... stick on thermometers dont work well on acrilic sump plastic act as insulator..........

 

[siren]

get a digital thermometer for it

what is alk, pH, ammonia, nitrates, nitrites

 

[darkside1]

sg is 1.022 a little low?

 

[siren]

not particularly...you want it at about 1.025 though

 

[albie611]

thanks all for the reply but im still confused.
alk. is too high ? most books i have read state alk shoud be between 8 and 15 dkh. ( i follow a set up in "saltwater reef atlas")
i have always had a alk reading of 12-13dkh in this tank and no sudden changes that i can tell. i test twice a week since its a 20 gal. and do 20%water changes every 2 weeks. all other corals are doing fine and growing nicely.
im still perplexed........ to bring alk down just water changes?
thanks for the help

 

[siren]

I had my alk dkh up to 11 once, I'll never do it again...it melted my pom pom, and caused my pulsing to close up for weeks....7-8 is what you want