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Old 03-22-2007, 03:53 PM   #11
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No problem Scott. There are two problems here. Low calcium and Alk and High nitrates. Between all of us we got them all.
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Old 03-22-2007, 04:18 PM   #12
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LOL! It's all about teamwork!
AK47, any updates?
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Old 03-23-2007, 01:06 AM   #13
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UPDATE

thanks to all who have helped with thier advise. i do use a sponde filter in my tank and i change it out usualy once a month. i just changed it today, it was getting pretty bad. i clean it once a week though.
i tested the alk and it is 1.5 i used a red sea alk-ph test kit.
i cound not find a calcium test kit..??? i went to pets co.
i have 20 gal of water almost ready for the wc. once the salt level is good . i will do the wc tomorow night..
thanks everybody....
how long should i wait after the wc to test the water??
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Old 03-23-2007, 02:41 AM   #14
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I'm assuming your alk reading is 1.5 meq/l ? If that's the case, it's a little low. You want it closer to 3.0 meq/l. I'm guessing your pH might be a little low also. How long has your tank been up and running? I'm not an expert, but I don't think alkalinity alone would cause issues with the coraline algae. If you want your coraline algae to come back, most likely you're going to need to know your Ca levels so you might call around to some other fish stores to see if they have one.

As long as you are putting in aged saltwater (not freshly mixed) there's no reason you can't retest your water immediately after a water change. Just give it a little time (30 minutes or so?) to mix up with the old water.
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Old 03-23-2007, 02:21 PM   #15
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Quote:
Originally Posted by Kurt_Nelson
most likely you're going to need to know your Ca levels so you might call around to some other fish stores to see if they have one.
You are going to need to know this. A calcium test kit is needed. Ask your LFS if he will test for you.
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Old 03-24-2007, 09:45 PM   #16
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Well everyone is jumping to assume it is water parameters but, i know deeper red and purple coraline grow in less light. And can become white or grow white in high light output situations. What do you have for lites and how long are they on? Most people dont understand it doesnt take alot of light to grow coraline. And to much light can fade it!
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Old 03-24-2007, 11:00 PM   #17
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Also lower calcium and alk levels will cause it to fade out IME.
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Old 03-25-2007, 12:34 AM   #18
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UPDATE

I COULD NOT FIND A CALCIUM TEST KIT..
I DID A WATER CHANGE AND THE READINGS ARE
PH 7.8
NITRATE 2.0PPM
AMMONIA 0
NITRITE 0
ALK 1.7
THE TEST KIT SAID 1.7 TO 2.8 IS NORMAL ON THE ALK.
WILL THE ALK RISE LATER OR WILL I NEED TO ADD A BUFFER?

I HAVE AN ORBIT EXTREME (1) 130w Dual Daylight and (1) 130w Dual Actinic. IT IS ON ACTINIC AT 8:00 AM DAYLIGHTS 30 MIN LATER.
AT 7PM DAYLIGHTS OFF 30 MIN LATER ACTINIC OFF.
4 LED MOONLIGHTS FOR THE REST OF THE NIGHT..
MY TANK HAS BEEN RUNNING FOR A YEAR.
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Old 03-25-2007, 01:55 AM   #19
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I don't think too much light is an issue here. You had coralline until recently right? When have you changed your lamps last? Also alk levels that low will cause issue w/ calcareous animals, etc. including coralline. Alk should be no lower than NSW -2.8, and more like 3-4 meg/l in a reef. Ca should be balanced and between 380-440 for coralline etc. to flourish. NO3 should not be an issue as long as it's under ~15. You need to add a buffer. Baking soda, ie arm & hammer, works great, and it's cheap. If you bake it in an oven at 400 deg. for an hour, before use, it's even more efficient, and then it will increase PH rather than lower it. You can also make your own buffer solution by adding teaspoons to a measured amount of water. Slowly raise the alk over a week or so. I would recommend increasing by no more than .5 meg/l in a day and not at once. Kent Turbo calcium is great for boosting Ca levels.
Here is a calculator to help w/ the dosing-
http://home.comcast.net/~jdieck1/chemcalc.html
Please stop typing in caps, it's kind of rude and hard on the eyes
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Old 03-25-2007, 02:09 AM   #20
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Quote:
ANY ADVISE TO CONTROL THIS HIGH LEVEL.
Run a good skimmer, don't over feed or over stock, clean all mechanical filtration at least every 4-7 days, run GAC frequently, use as much LR as possible, and do regular 10-20% PWC's w/ NO3 free water. You may want to consider ditching the CC for LS. Have you tested your source water for NO3?
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