Dying Star Polyps. Help

[salisbury a d]

What have I done wrong?
It is about half way up the tank and in moderate current. pH 8.2 but goes up to around 8.4 after dosing kalk. Ammonia 0
nitrate 0
nitrite 0
phosphate .1ish.
three 55 watt pc two white one actinic.
I have lightly scrubbed it a couple of times due to some hair algae but it never seemed to affect it much.
It has refused to extend for a few days and where there used to be some of the coral is now bare rock.
Please help.
Adam

 

[jimi]

What is your salinity, calcium, and alk levels?

 

[salisbury a d]

Salinity is usually 1.023 but sometimes goes to .024 and .022.
The last time alk was checked it was 2 ppm but since then I have dosed 5 gallons of kalk.
I do not have a calc tester.
Adam

 

[burnnspy]

Your alkalinity is too low and is most likely your cause.
Get a Red Sea pH/Alk test kit and you need 3.0-5.0 me/l.
Add Seachem's Reef Builder for alkalinity.
BurnNSpy

 

[flydan]

Hey,
Don't know if this has anything to do with your experience, but I had a @#$%! brittle star that like to camp out in the rocks right next to my star polyps and drag an arm back and forth over the rock. Scraped it right down to bare rock and wiped out half the colony. I moved the star polyps to a new location and they are starting to spread again.
Hope yours is OK.
Dan'l

 

[salisbury a d]

Yeah today four polyps were extended.
BurnNSPY.
I have a alk and a ph test kit.
What is so great with the Red Sea.
Ok i am 14 yrs old. I am looking for a job.
was fired from my first job after 20 minutes because I am not a very large teenager. I was the dishwasher if you would like to know.
Owe my parents about 500
Am about to buy new lights.
JUst bought a protein skimmer
and am very pissed right now.
I you like give me the money and then I will buy the test kit I should have.
While you are at it how bout the suppliment to.
It would probably be cheaper to chuck the coral it was only 30$
Adam