sps help

[redadeath]

this is my first sps in tank all my parameters are ok and zero nitrates and phosphates

alk 11-12
caclium 400 -420

mag 1250

ph 8:2

salinity 1.024

the only problem is that i don't have chiller

so temp at night 27c and at morning 29 c

tank is year and half old

i notice that it have very light brown tent in some places
as it is can be showed in the video \

can any body help me if it is doing good or not





this is my first acropora

please watch the video

http://www.youtube.com/watch?v=hAgHYEgeY0U

 

[redadeath]

why no body ansewers is there problem in video link

 

[redadeath]

??????????????????????

 

[smokenax]

It looks bleached you may want to
Lower your alk to like 9dkh.

 

[ecomdesign]

SPS don't like temps swings. IMO a swing of 80 to 84 is a little too much. Also 84 is higher then what I ever let my tank get too. I have a chiller so I'm able to keep my tank within 1 degree, even on a hot day. My tank never gets above 80.

Also, your parameter are a tad off from what I usually aim for.

Alk:8-9dkh
Cal:420-450ppm
SG: 1.025
Mag:1350ppm

I new to sps too, so take the above with a grain of salt Its just what I aim for.

What are you using to test ph & phosphates? What are your readings? Also how much does your ph swing from first thing in the morning too lights out at night?

Cheers!

 

[phishsauce]

Bleached corals are usually signs of stress or high lighting.
Try putting in lower lighting, wait for proper polyp extension prior to raising it to higher lighting.

The parameters look good, but lowering alk may help soothe them.

 

[ecomdesign]

What lighting do you have on there anyway? How far down in the water is the acro?

 

[redadeath]

What lighting do you have on there anyway? How far down in the water is the acro?

250 watt metal halide hamilton tech 3 month old

i left it for 5 days at the botton the n raised it to the top

 

[ecomdesign]

Good to see that you kept in lower in the tank for awhile. When in the process did it start to bleach then?

 

[phishsauce]

Just give it a few days, before you raise it to higher levers in the tank.
Otherwise it's going to STN, but as long as it's still alive, then there's definitely plenty of hope.

 

[redadeath]

Good to see that you kept in lower in the tank for awhile. When in the process did it start to bleach then?

it doesnt bleach it is gowing brown
it was the same yellow colour when i got it then after i raised it up it started to get brown and no polyp extention

please watch the end of this video i have my acro in it please thell me what do u think

 

[gon08]

It looks like it was cut from a wild colony. Often wild colonies bleach or greatly reduce the amount of zooxanthellae in their tissue. It will turn brown as it repopulates it's zooxanthellae and then regain color as it begins to grow.
I don't see any Nitrate or Phosphate testing, I would make sure those are in check as they can turn corals brown too as well as slow their growth rates. I would do a good size water change and just watch the coral.