Need help with sps bleaching

jimmyzhou

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Hi I got a 5 month old tank
Salty 1.026
Cal 455
Mag 1260
Ph 8.1-8.26
Alk 7.6-8.1
Par meter read 260-290 par on the sps spot
Use 4x radion xr15 g4 pro
All the lps are fine
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Move them to sand bed around 130-160 par. Hope will come back! Tips are bleaching right now those white colors
 
That could be new growth as well. Did you acclimate them to your lights? I had a birdnest almost 100% white on me. I could see a little green under the blues but other than that it was white. I left it alone and its now almost 100% green with polyps out.
 
I didn't acclimate them to my light this is my first sps. I'm getting new shipment of sps pack will will slow acclimate them on my frag racks
 
@jimmyzhou, what @Flippers4pups said. :)

Nutrients even play a role the light factor that others have mentioned. Even if it turned out that the light levels now were a shock to what the frag had before (which is important to know if you can find out....even just a lux reading could be helpful), low PO4 could still actually be looked at as part of the cause. Nutrients are important during light acclimation, but P in particular.
 
@jimmyzhou, what @Flippers4pups said. :)

Nutrients even play a role the light factor that others have mentioned. Even if it turned out that the light levels now were a shock to what the frag had before (which is important to know if you can find out....even just a lux reading could be helpful), low PO4 could still actually be looked at as part of the cause. Nutrients are important during light acclimation, but P in particular.

Thanks a lot
 
First time use them. Don't know how too read then yep. No3 on the card shows 0.25. Am I right or read 0.06 4.00 or 0.91. Please help
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0.25 ppm sounds more consistent with the look of the tank, but I'm not familiar with the kit or what process you took during testing. Someone on #reefsquad is probably more familiar with that kit. Do you know if you set up your test for high-range or low-range?

Will you be able to test PO4 as well, or can you take a water sample to the LFS and get it tested for PO4?
 
0.25 ppm sounds more consistent with the look of the tank, but I'm not familiar with the kit or what process you took during testing. Someone on #reefsquad is probably more familiar with that kit. Do you know if you set up your test for high-range or low-range?

Will you be able to test PO4 as well, or can you take a water sample to the LFS and get it tested for PO4?

The nitrate kid I use 1ml tank water and 15ml rodi water. No4 I use Hanna ph checker ppb I think came out 5
 
The nitrate kid I use 1ml tank water and 15ml rodi water.

NO3
Just from looking at the pic of the card you posted, it looks like 1 mL + 15 mL is the high-range setup.....which should mean 4 ppm NO3. Again, someone more familiar with this test should probably answer though. :)

PO4
Phosphates in the Reef Tank: Understanding the HI713 and HI736 (Free Conversion Table)

5 ppb appears to eqate to 0.015 ppm of PO4.

If I converted correctly, and judging from the coral, that's effectively zero PO4 for your inhabitants.

If your nutrients are this low, it's a bad thing and is likely to be the cause of your trouble.

Check out the Nutrients, Coral and/or Stress sections on my blog for lots more related info! PM me or post a reply if you have any questions about any of the material! :)

Here's a goodie to start with:
Impacts of nutrient enrichment on coral reefs: new perspectives and implications for coastal management and reef survival
 
If you used the high range then judging by the color you have between 4-8ppm.
You can test again without diluting it by using 16ml tank water. More accurate that way. If you get a reddish color by using the low range then you have high NO3 then that's the time you use the high range test
 
The only thing I am going to throw in about nutrients is, a Good range for Nitrates is 3 to 5 ppm I have run nitrates as high 16. Phosphates .01 to .03. I like to run my phosphates around a .02. We need phosphates and nitrates in the water to feed the corals.

What are you feeding the system?
 

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