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Old 02-16-2007, 10:09 PM   #1
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coraline help test kit results

ok my ca is at 380 ppm alk is 400mg/l and my kh is 214.80ppm i am using tap water in a 30g holding tank for 24hours before pwc using tropic marin salt .

what should my readings pref be at ? and what additives should i get to get the right results? thanks

want to get a good coraline growth and get xenia and lps corals.


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Old 02-16-2007, 10:17 PM   #2
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alk is 400mg/
I assume you mean 4 meg/l? If so your current params will do just fine.
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Old 02-16-2007, 10:39 PM   #3
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i mean my dkh is 12

i have a seperate alk kit tested 9meg/l or 450mg/l is it one in the same ? or different ?

shouldnt my ca levels be around 400 ?

i have had this setup for years and still no coraline. .

is my alk out of wack ? i havent teste for mag yet.
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Old 02-16-2007, 11:15 PM   #4
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Quote:
Originally Posted by MorayMadness

shouldnt my ca levels be around 400 ?
380 is close enough. Here are some links to help

http://www.reefkeeping.com/issues/2004-12/rhf/index.php

http://www.advancedaquarist.com/issues/nov2002/chem.htm

http://www.reefkeeping.com/issues/2004-05/rhf/index.php
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Old 02-17-2007, 12:22 AM   #5
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Quote:
Originally Posted by MorayMadness
i have had this setup for years and still no coraline. .
Coraline algae needs to have a "seed." If you never had any to start with - like if you had ALL base rock - then none will grow.

Your parameters are good enough for it to form. I had my Ca at 360 and Alk at 8 dKH for the first 2-3 months and coraline grew just fine. It wasn't until it was depleted down to about 320ppm (unknownst to me at the time) that it stopped forming and I started figuring out the whole Calcium deal. Now that I'm back up to 380-400, it's coming back great!
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Old 02-17-2007, 01:00 AM   #6
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Quote:
Originally Posted by MorayMadness
i have a seperate alk kit tested 9meg/l or 450mg/l is it one in the same ? or different
I'm not familiar with readings in mg/l, or how to convert one to the other. If your Alk is coming up 9 meg/l that is very high. I'm not sure you could get that high with out having major issues. What brand test kit are you using? Does it have a reference test to see if it's still good? If so I would run a reference.
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Old 02-17-2007, 01:08 AM   #7
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shouldnt my ca levels be around 400 ?
350-450 is fine. Somewhere in the middle, 400-425, is just a good medium. It allows for any inaccuracies in the test kit along with natural fluctuations with out Ca being too high or dropping too low.
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Old 02-17-2007, 10:42 AM   #8
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Quote:
Originally Posted by Kurt_Nelson
Quote:
Originally Posted by MorayMadness
i have had this setup for years and still no coraline. .
Coraline algae needs to have a "seed." If you never had any to start with -
That is not exactally true ....In my tank all of the LR I had NONE had coraline algea . After a year keeping the CA stable it started to grow.
While it is true that seeding it will help to get it started it is not needed .
I have had mine up for almost 9 months in the Living room and still only get it on the rocks , and a few specles on the glass . The one in the BR is going crazy(it was till it leaked ) Now it is just a matter of time for it to go crazy again..... It also depends on what you have pulling CA from your system , if you have a lot of corals(LPS) that use CA it is not that far fetched to not have it going wild crazy on equipment and glass , or even the rocks , you may need to suppliment CA to give it a kick .
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Old 02-17-2007, 12:21 PM   #9
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yes thanks, i had some coraline growing on specs on glass and rock. from time to time. i just started using tropic marin salt before i was using IO. this is actually the first day for my new complete pwc with TM salt. i tested for a high amount of alk, i will retest my tank and my pwc before i do it. ill post up the results again and see whats up. thinking about getting kents turbo calcium. as i stated before i am using tap water not ro/di. ill keep you posted,

thanks all



ok test results are in


pwc water holding for 48 hrs. with tropic marin
ca 320
8-9 dkh
5-6 alk
8.2 ph


Main tank water test

ca- 400
5-6 dkh
alk 4-5
ph - 8.4- 8.5


surprisingly my ca went up from last night. seems my ph is a bit high and my DKH is low. but from my new pwc its almost perfect except for the low ca levels., maybe i need to boost my ca in my pwc?

any ideas?

i am getting a seachem mag test kit today or tomorrow. thx
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Old 02-17-2007, 05:46 PM   #10
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except for the low ca levels., maybe i need to boost my ca in my pwc?
Boosting it to 400-425 would be a good idea. Turbo calcium would be perfect for this. I've heard TM salt is on the low side for Ca so it's not surprising. I would recommend getting a better Alk test kit. Increments of .5 meg/l or less would suit a reef tank much better. 4-5, 5-6 meg/l is kind of a broad range for getting Ca/alk levels balanced.
Have you used the online calculator for dosing measurements? Makes life easier, I can post a link if neccessary.
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