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  #31  
Old 08-17-2018, 02:38 PM
jacky jacky 目前離線
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Good job! If the data is too biased, it is recommended to refresh the WC balance mode. You have a lot of experience. I need to learn more from you later. If the test reagent is correct, it is worth testing to see if the ro/di is good (take the test, people often ignore it) to confirm that the water source is perfect.
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  #32  
Old 08-18-2018, 05:03 PM
zanclus zanclus 目前離線
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Tested at 4pm today Alk was at 6.4dkh. Im adding 10lm to my dosing(both cal and Alk). Lets hope I am gwtting this under control.....
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  #33  
Old 08-19-2018, 03:38 AM
jacky jacky 目前離線
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Does the coral increase their growth? "New growth point", "Bottom extension", is there a picture of tank?
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  #34  
Old 08-19-2018, 04:19 AM
jacky jacky 目前離線
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I can't help the exact amount of corals. Only an objective opinion can be provided objectively. Let's try to use the sea salt that is suitable for kh, and it is very important to change the balance by 10% per week.

My current stage - the number of 600L water corals is about 15 and the fixed water change is 10% per week (red sea salt kh7). The consumption is very low. Occasionally added manually, the consumption of kh is large (1000L ro/ri water = 65g baking soda powder) But it is not fixed, especially at night, it can consume about 90ml of baking soda solution or even add 90ml of nighttime in 8h. The minimum consumption time is about 4h and does not need to be replenished.

My kh is controlled at 7, after changing the water 10% per week, it will be at 7.10 the next day. As time goes by, the growth of the baking soda solution 1000ml bottle is more and more.

Ca occasionally replenished When I change water every week, it is at 370~380. I tried using instrument-assisted minimum quantization, but they are too many. I will start when they are expensive.

k Test 2 times to 3 times a week and make up k to stay at 400 minimum 380
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  #35  
Old 08-19-2018, 04:43 AM
jacky jacky 目前離線
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Maybe you are heading in the right direction. An idea: sea salt kh9 weekly fixed water change 10% after the next day kh is how much? kh is greater than your control of 7 or less than 7, so it is recommended that you temporarily temporarily change the water to balance them, calculate the consumption within 7 days, each The amount of kh consumption that needs to be replenished one day, and then the hourly or every 4 hours of consumption. This is my method.
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  #36  
Old 08-19-2018, 07:00 AM
jacky jacky 目前離線
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You may also need to notice one thing. When you have a problem, you need to change the water a lot. For example: change the water 3 times in 10 days, 10% or 15% each time. That's why I recommend that you change the reason for sea salt.

Like my current coral consumption as an example, the first 2 weeks before G, Alexander gave me the proposal (try the Pif increment), change the water 3 times 15% in 10 days. On the 11th day, the measured kh is 7.28. , still in the recommended range of 6.5 ~ 7.5.

Last edited by jacky; 08-19-2018 at 07:24 AM.
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  #37  
Old 08-19-2018, 07:58 AM
jacky jacky 目前離線
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By the way, there are now khg automatic control to add instruments that can be considered. Sorry to keep occupying the layout

Sorry, the unit is wrong, the #34 line is 1000ml=65g

Last edited by jacky; 08-19-2018 at 08:18 AM.
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  #38  
Old 08-19-2018, 12:15 PM
ohashimz ohashimz 目前離線
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Quote:
Originally Posted by zanclus View Post
Hi I seem to be puzzled on the Alkalinity readings I keep getting. I am using a Hanna colormeter, and keep getting readings of 6.9-7.1 dkh I am adding liquid soda ash to bring my level to 8.5dkh each evening (11pm) but by noon the next day my levels have dropped back to the 6.9-7.1 range. Is this normal using zeovit? I have never in over 40 years of reefkeeping experienced this.I have a very light load of corals, 12 1.5" sps frags and a 14 head candycane.
The right alk range for zeo is 6.5 to 7.5. I keep mine at 7.
The key here is accurate reading. If your test kit is giving variation or wrong reading this can be very dangerous. Make sure you cross correlate.
Alk dip is normal withen certain conditions
1- dip from consumption which depend on your coral load. Sps consume the most
2- dip during the day. Just like ph, alk vary during the day. Usually it will follow your ph swing
3- salinity. This is often overlooked by reefers. Salinity is super critical, you will be suprised how many reefers end up discovering their sanity measurment is not accurate. So if you see alk swing when you do water change, check your salinity measurment method very very carfully.

What I advice the most to reefers is to get khg yo monitor your alk daily not only weekly or every couppe of days. Khg eill give you good insight and accuracy on your alk behavior during the day.

Sent from my SM-G960U using Tapatalk
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  #39  
Old 08-19-2018, 02:19 PM
jacky jacky 目前離線
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Senior ohashimz big brother said very well, salinity, usually before the salinity, using an instrument with automatic temperature compensation


Zeroing with ro/di correction Use a salinity meter with automatic temperature compensation.
1. Is the SG in the tank stable?
2. Can you give the tank picture coral a picture?
3. Which potions are currently added
4.tank age coral number
5. Light source time
6. Zeolite brand
7. You have the feeling that kh consumption is normal ? Tank for you,
8. Whether to add another strain,
9. Release the complete kz message of tank

Last edited by jacky; 08-19-2018 at 02:48 PM.
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  #40  
Old 08-19-2018, 03:48 PM
jacky jacky 目前離線
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There is also a way to confirm that dkh is correct, provide it to you, search for the keyword "SIGMA-ALDRICH" in your area, and enter the product ID search "ALK1000-100ml". Laboratory Standard Alkalinity, CaCO3 1000 mg/L Calibration Standard

1 Product Result

| Match Criteria: Keyword

ALK1000certified reference material (Sigma-Aldrich)

Pricing

SDS
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