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  #166  
Old 07-12-2018, 02:24 AM
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G.Alexander G.Alexander 目前離線
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Usually if a system runs nutrient poor stabile for a while NO3 is not detectable with the hobby test kits. I have personally never had any issues with this situation.

G.Alexander
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  #167  
Old 07-12-2018, 06:43 AM
JMac JMac 目前線上
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so zero NO3 with hobby test kits is fine. what about PO4 & P? should that be undetectable also? I have Hanna Checker for PO4 & Hanna Checker ULR for P
thanks so much u da man
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  #168  
Old 07-13-2018, 05:11 AM
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I had running my reefs with a PO4 level using a Hanna Photometer in the range of 0.00 – 0.02 mg. The difference in the look of the corals within this range was not visible. Has worked really well for my, health and growth of the corals was fantastic as long as all other parameters (water, light, biology etc.) where perfect.

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  #169  
Old 07-13-2018, 05:33 AM
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Quote:
Originally Posted by JMac View Post
so zero NO3 with hobby test kits is fine. what about PO4 & P? should that be undetectable also? I have Hanna Checker for PO4 & Hanna Checker ULR for P
thanks so much u da man
Np is close to 0ppm coral performance is no problem, my current tank n is not detected, p 0.00~0.01 ppm. This is not why we use the kz system, you say is it?
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  #170  
Old Yesterday, 02:24 PM
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Originally Posted by G.Alexander View Post
You might decrease the KH a little bit to 7.5 keeping it as stabile as possible.

Have you already checked the K+ level of your salt mix ?

Dosing coloration elements does depend to the coloration of corals so basically if SPS corals tissue has become lighter already showing good growth you can add a couple of those elements additional but lets first bring up the K+ level as this has a impact also.

G.Alexander
how do I lower KH to recommended level of 7.5?
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  #171  
Old Yesterday, 03:13 PM
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An idea to use hydrochloric acid (not recommended for danger), change sea salt, wait for the tank to land naturally
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  #172  
Old Yesterday, 09:02 PM
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An idea to use hydrochloric acid (not recommended for danger), change sea salt, wait for the tank to land naturally
I use Red Sea Blue Bucket Salt, maybe I will try mixing to SG 1.024 instead of 1.025 to see if that gives me lower KH. I typically mix at 1.025 & KH is always above 8. Batch analysis is 7.756 at 1.026
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  #173  
Old Yesterday, 10:26 PM
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SG 1.024 & 1.025 kh is of course different. You adjust kh by SG. I think it is very risky. When testing kh ca mg, it doesn't make sense if SG is not fixed, so be sure to confirm SG when testing elements, so changing sea salt is a once and for all method. Reefer's Best Coral Reef Salt is a good choice and solved. K+ problem
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  #174  
Old Yesterday, 11:48 PM
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KH does usually fall very quick if you reduce the supplementation of it.

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  #175  
Old Today, 05:52 AM
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Quote:
Originally Posted by G.Alexander View Post
KH does usually fall very quick if you reduce the supplementation of it.

G.Alexander
I dont supplement Cal Alk Mag anymore since I started Zeo. Havent needed to. Whatever the salt analysis is, is all I do since weekly water change schedule with Zeo
I am looking at HI-83300-01 Photometer to purchase. Are you familiar with it & what do you think of the quality & accuracy?
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  #176  
Old Today, 08:43 AM
jacky jacky 目前線上
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Ask JMAC, the number of corals growing with time and environment Coral growth. Just changing water every week is not enough to stabilize the elements. Why not add kh ca mg? Are you 100% water change? How do you refresh the balance? thank you
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  #177  
Old Today, 09:11 AM
JMac JMac 目前線上
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Quote:
Originally Posted by jacky View Post
Ask JMAC, the number of corals growing with time and environment Coral growth. Just changing water every week is not enough to stabilize the elements. Why not add kh ca mg? Are you 100% water change? How do you refresh the balance? thank you
my KH Ca Mg is high enough with a 10% water change every week
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  #178  
Old Today, 10:00 AM
jacky jacky 目前線上
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Quote:
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my KH Ca Mg is high enough with a 10% water change every week
Sounds good, I understand the meaning, thank you
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