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Old 04-19-2017, 6:41 PM   #1
Arringar Arringar is offline
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Converting established tank to Zeovit

I am preparing to convert one of my systems to zeovit. I have purchased a Skimz ZM120 reactor, 2 liters KZ zeolite (will use 1 liter in reactor), zeostart, zeofood, and zeobak. I have also purchased KZ Amino Acids, and a Potassium test kit (I have not monitored K before).

My current plan:

I have done some research and I have decided to run the reactor 3 hours on/3 hours off controlled by my Apex to prevent reducing the nutrients too quickly, plus remove the GFO in phases.

I am making this post because I would like helpful suggestions from experienced zeovit users to help prevent making unnecessary mistakes. So PLEASE reply with any suggestions you have. I will post updates as I progress.

Here are the details of my system (questionnaire from zeovit.com forums):

1. Gross water volume of your complete system (incl. sump etc.) - US gallons / UK gallons / liter

90 Gallon tank, 30 gallon sump, 120 US gallons, gross

2. Net water volume (incl. sump etc.) - US gallons / UK gallons / liter

Approximately 95 US Gallons

3. Are you using a CaCO2 reactor or other technique


4. Are you using a PO4 reactor (how long, how long ago, etc.)

Yes, currently, used for about 6 months.

5. Are you using Ozone


6. Are you using UV


7. What skimmer are you using (type, rated water volume)

Coralbox D700 - rated for 90-210 US Gallons

8. What are your actual PO4 and NO3 levels

PO4 - 0.00 per Hanna Checker
NO3 - ~2ppm per Nyos test kit

9. What are your actual Ca, Alk and Mg levels

Ca - 420ppm
Alk - 9
Mg - 1340ppm

10. What filtration method do you use (refugium, DSB, Miracle Mud, etc.)

Refugium with Miracle Mud, no macroalgae
~2 inch sandbed, lots of live rock

11. Type of light (Watt, color temp, how old, etc.)

2 x AI Hydra 26 HD, running at ~18,000K
1 x 54W - 48 - T5 ATI BLUE PLUS
1 x 54W - 48 T5 - ATI PURPLE PLUS

12. What corals do you keep

Various mushrooms, ricordeas



13. Tissue color (light or dark)

Colors are not great. Some SPS corals have ok colors, but most are either too dark or slightly brown. Softie and LPS colors are good.

14. How long has the tank been running

About 9 months since I moved, but all the live rock and some coral comes from my original system that was running for 8 years.

15. Why do you want to use the ZEOvit system

Improve coral colors/health. Reduce nutrients to ULNS levels.

16. Any supplemental dosing (type, amount, why, etc.)

I dose kalkwasser (Brightwell Kalk+2) in topoff water to maintain pH/Ca/Alk/Mg/Sr
Red Sea NO3-PO4X to keep nutrients down until recently - this has caused problems recently with colors and also 1 coral lost to RTN. I believe the component in this additive that causes corals to expel zooxanthellae may be the cause of this. I have since stopped dosing this.
Red Sea Reef Energy A&B - dosed every other day @ 10ml total dosage each
Seachem Fuel @ 21ml twice per week
Spongepower - I have been dosing spongepower for about 2 years - 3-4 drops daily

17. Live rock (how much, how old, etc.)

About 85lbs very porous rock, 8 years old

18. Any present problems


19. Problem description (tissue loss tips, tissue loss base, diatom bloom, algae, etc.)

Coral colors, as mentioned above.
Very small amount of GHA
Bubble algae outbreak, but improving slowly

20. What test kit do you use (how old, recently switched, etc.)

I use Salifert and Nyos test kits, plus Hanna low range checker for PO4. Test kits are new or not more than a few months old.

21. Present dosing, amounts and intervals (ZEOvit, ZEObak, ZEOfood, ZEOstart, ZEOspur2, etc.)


22. Other water parameters and water stability (salinity, temp, etc.)

Temperature: 77.6 F
Salinity: 33.8 PPT
pH: 8.05 - 8.24 daily range
ORP: 320

23. Which salt brand do you use

I.O. Reef Crystals

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Old 04-20-2017, 3:40 PM   #2
SnowManSnow SnowManSnow is offline
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The zeovit forum will be a lot more help imo for the specifics

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Old 04-23-2017, 11:40 AM   #3
Patrick214 Patrick214 is online now
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I recently setup a smaller tank that is running zeovit but it's my understanding that you'll want to make changes slowly to an existing system or you could see TN in corals from the quick drop or temporary rise in nutrients.

Just a few observations, the zeoheads would probably recommend slowly dropping Alk to around 7.5DKH and taking your PO4 Reactor off line slowly in increments of 1/3 over roughly 6-8 weeks.

If you have GHA currently, I'm guessing you have bound nutrients even though Hanna is not picking them up so be careful in removing PO4 absorber too quickly until the zeo biology is kicking into gear.

Also as a side note, I've found it's much better to under dose than to overdose or follow the guidelines strictly. The supplements are best to dose slowly and observe. For instance I'm currently battling a brown bacterial slime from overdosing of zeostart.

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Old 04-23-2017, 11:47 AM   #4
Patrick214 Patrick214 is online now
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I believe the use of kalkwasswer is also not recommended with zeovit. May want to check on their forum to be sure but I went with two part run through dosing pumps which have been fairly easy to dial in.

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Old 04-23-2017, 1:10 PM   #5
BrandonMason BrandonMason is offline
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Using reef crystals would be an issue to at waterchange time. Reef crystals mixes at a higher alk than you'd want to be with in a zeo system

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