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  #1  
Old 03-18-2019, 10:19 PM
AB_Reefer AB_Reefer 目前離線
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Default Unable to reduce Nitrate

Hi,

My Nitrates are stuck at 30-40 ppm level and even with big water changes are not helping much in reducing this..
Currently I am dosing 1 ml ZS3 daily and 4-5 drops zeobak x 3 times weekly.
I have approx 900ml of media running through the reactor at the speed of 300-350 liters per hour..
Total water volume is approx 550 liters.

Does dosing zeobak more often or cutting down on ZS3 dosage makes a difference to the Nitrate levels? I am really hoping to bring down my Nitrate level to 2-5 ppm as my corals allthough very healthy look very dark in color.

Po4 level is 0.02 (Hannah ULR)

thanks.
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  #2  
Old 03-18-2019, 11:07 PM
jacky jacky 目前離線
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[Po4 rating is 0.02 (Hannah ULR), nitrate level stays at 30-40 ppm level]

The dose looks good if you can Zeo Start3 x2 every day

If the PO4 value is correct, then it should not be a problem.

If the coral is healthy, you can slightly increase the ZeoVit reactor flow, no more than 400 per hour.

I don't know if the ZeoVit material has been experienced for the first time at the current stage of your tank. But from your narrative, the reactor flow is switched.

Give tank and system a little more time.

Po4 rating is 0.02 (Hannah ULR), usually the coral should not look dark

Last edited by jacky; 03-18-2019 at 11:37 PM.
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  #3  
Old 03-19-2019, 01:29 AM
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G.Alexander G.Alexander 目前離線
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Do you use any kind of mechanical filtration material like sponge, filter cotton etc ?

G.Alexander
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  #4  
Old 03-19-2019, 03:18 AM
AB_Reefer AB_Reefer 目前離線
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@ G Alexander

My overflow pipe feeds into a auto roll filter and then there is a skimmer. These are the only 2 things I use for filtration in my sump.

Apart from this i try to syphon out the sump as well as sand bed every once in a while.. So not sure why the Nitrate value not coming down.

@ Jacky
I have been running zeovit system for approx 5-6 months already and allthough the coloration of my sps have improved a lot but for some reason the nitrate levels are stuck at pre zeovit levels..

I have attached some recent pics from my tank..
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  #5  
Old 03-19-2019, 05:22 AM
jacky jacky 目前離線
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Hello AB_Reefer, what is the complete Zeo dose and frequency, in addition to Zeo products, what products have you added?
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  #6  
Old 03-19-2019, 10:16 AM
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Bugger Bugger 目前離線
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Which test kit are you using?
How long have you had high nitrates?
Do you think something is dead inside the tank?
Your corals look healthy I would just keep doing the big water changes even after the Ntrate levels go back to lower levels?
What are you feeding the tank on a daily basis?
Peronally I feed like cube after cube and supplement fatty acid and phyto plankton everyday and my Nitrate doesn't rise that much.
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  #7  
Old 03-19-2019, 08:36 PM
AB_Reefer AB_Reefer 目前離線
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@ Jacky
My dosing regime is as follows
ZS - 0.5 ml x2 daily
5 drops of sponge power 3-4 times every week
5 drops coral vitalizer 2-3 times every week
5 drops zeo bak 2-3 times weekly
10 drops Bio mate 2 times weekly
5 drops AAHC 1 time weekly
5 ml coral booster 1 time weekly
coral food like reef roids / benepets 1 time weekly
250 ml carbon changed every 4 weeks.

@ Bugger
I use salifert for Nitrate testing. Cross checked with a fresh batch of water to ensure 0 reading. So the kit is working fine.
no dead animals i can think of apart from some clean up crew once in a while i guess.
I feed flake food 2 times a day and half cube of selcon enriched frozen once a day. so not a heavy feeder at all.
I did 2 x 50% WC few weeks back and the nitrate readings were still at 25 ppm when i tested a few days later..

the only think which i can think of is the sand bed which probably has accumalated a lot of gunk over the years and I am unable to vaccum most of the areas near the rocks or in the back..
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  #8  
Old 03-19-2019, 09:03 PM
jacky jacky 目前離線
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Hello AB_Reefer, the dose is very good, I can't see any unusual places. Then for your narrative, try Zeo Coral Snow 10ml every day, skimmer wet, change water 5~10% per week. In addition, ZeoVit material does ensure that it is at the correct level, 2 times per day pull/turn, and then given to Zeo Start3

(Zym, BioMate, basics Zeo Bac Start3, ZeoVit material, bacteria can nourish Zeo Bac, let's try Zeo Coral Snow first, and clean the material more frequently (after adding Zeo Start3)

If you prefer, when Zeo Bac is added, try mixing with Zeo Coral Snow. If you can temporarily turn off Skimmer for 30 minutes, turn it on again.

If it is possible, it is possible to use different phosphorus tests

Last edited by jacky; 03-19-2019 at 09:17 PM.
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  #9  
Old 03-19-2019, 10:36 PM
AB_Reefer AB_Reefer 目前離線
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@ Jacky
Normally I will do a bigger WC once a month instead of 10% weekly..
I will try to skim wet and clear the zeovit stones more often..

@ alexander any recommendation on the dosage ? will increasing / decreasing the ZS3 & ZB dosage will have any effects on NO3 levels?
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  #10  
Old 03-19-2019, 10:56 PM
jacky jacky 目前離線
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One week 10%
50% a month
2 months 100%

Which one would you choose, I choose 5~ 10% for 1 week

50% WC a month, I think too much
Keep 5~10% a week, keep the biology stable, refresh the balance and supplement, I think it might be better

This is just my idea
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  #11  
Old 03-20-2019, 02:18 AM
AB_Reefer AB_Reefer 目前離線
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Quote:
Originally Posted by jacky View Post
One week 10%
50% a month
2 months 100%

Which one would you choose, I choose 5~ 10% for 1 week

50% WC a month, I think too much
Keep 5~10% a week, keep the biology stable, refresh the balance and supplement, I think it might be better

This is just my idea
Hi Jacky..
1 week 10% WC translates into 34% New water in tank at end of month
1 month 30% WC translates into 30% new water in tank at end of month

So i just make my life easier and do it once a month instead of weekly .. Offcourse i make sure all my parameters in new mix are spot on compared to my tank water..
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  #12  
Old 03-20-2019, 02:35 AM
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G.Alexander G.Alexander 目前離線
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Can you please provide some more information of the auto roll filter you use ? A picture of it would be helpful additional.

I do not see any problem with your dosing regimen, please also check if the reactor flow is adequate.

Have you had this issue before starting ZeoVit also ? If not, which changes have you done since this time ?

G.Alexander
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  #13  
Old 03-20-2019, 02:59 AM
jacky jacky 目前離線
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Quote:
Originally Posted by AB_Reefer View Post
Hi Jacky..
1 week 10% WC translates into 34% New water in tank at end of month
1 month 30% WC translates into 30% new water in tank at end of month

So i just make my life easier and do it once a month instead of weekly .. Offcourse i make sure all my parameters in new mix are spot on compared to my tank water..
Thank you, I understand the meaning.

Indeed, I don't see any problems from the dosing regimen. Can the "automatic reel filter" image like G.Alexander give us more clear Sump images? Thank you.

In addition, if the Zeo system is 5-6 months, a good dosing regimen and ZeoVit material use, usually there should be no such level of NO3, which seems unusual.

So what is rock material?
What kind of sand?
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  #14  
Old 03-20-2019, 12:30 PM
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Bugger Bugger 目前離線
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Hi AB if you have had elevated levels for months and not had any algae issues I would would not do anything at all. Corals don't like big swings it would be risky to add a nitrate filter or add NOPOX.

If you do want to add NOPOX I recommend half even one third the recommended dosage
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  #15  
Old 03-21-2019, 01:48 AM
AB_Reefer AB_Reefer 目前離線
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@ Alexander
its a Bubble magus auto filter roll. somthing like Klir filter.. I have attached a pic of the sump..
I have always had high nitrates but never really chased lower figures however with 6 months in zeovit I was expecting they go much lower.. however that hasnt happened for some reason..

@Jacky,
I started the tank with carib sea live sand.. thats what is still there in the system..

@ Bugger
There is no algae issue in my tank for time being.. I had some cyano in the past when i switched to zeovit but everything has been quite stable and problem free for past 3 months or so..
Isnt ZS3 and NOPOX a same product ? Both are essentially a carbon source for bacteria so will there be any advantage of dosing NOPOX over ZS3?
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