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  #31  
Old 12-04-2019, 07:26 PM
jacky jacky 目前離線
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I'm not sure about the appearance of the "brown algae" you described. Usually it doesn't disappear so quickly if it is "algae". Conversely, if classified as "bacteria", it can easily change quickly due to the environment.

Did they disappear after the lights were turned off?
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  #32  
Old 12-04-2019, 10:52 PM
bckey bckey 目前離線
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Yes. By the end of the day it came back again but not as bad as the previous day. My lights are running pretty low already because I had lowered them about a month ago. At their peak the whites are no higher than 60%. The uv is 70% at its highest.
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  #33  
Old 12-05-2019, 07:41 AM
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G.Alexander G.Alexander 目前離線
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Might it be Dinoflaggellate ? They do often disappear while the dark period and grow back if the lights are switched on.

G.Alexander
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  #34  
Old 12-13-2019, 04:29 PM
bckey bckey 目前離線
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Still no brown algae. I also am still not 2 part dosing yet but I do have the equipment to start when that day comes. My current readings are:
Salinity 1.026
Phos 0
Calcium 440
Potassium 390
Alk 7.2

Still dosing the basics as instructed and also 2 ml of K balance. My coral frags mostly look great. A couple of the older ones I had bleached. 1 was a total loss. The rest look great and healthy.
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  #35  
Old 12-13-2019, 04:30 PM
bckey bckey 目前離線
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And for the record this is day 17.
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  #36  
Old 12-13-2019, 11:24 PM
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G.Alexander G.Alexander 目前離線
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Sorry to hear about the looses, where those all Acropora corals ? Please measure the flow through your ZeoVit reactor to make sure it is not to high, do you still run the reactor with a 3 hour on / off interval ?

Which kind of carbon do you use and do you run it in a reactor or passively flown in the sump ?

G.Alexander
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  #37  
Old 12-14-2019, 12:39 AM
bckey bckey 目前離線
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Yes I still run the reactor 3 hrs on 3 hrs off. I use the korallen-zucht carbon in a media bag.
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  #38  
Old 12-14-2019, 02:58 AM
jacky jacky 目前離線
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It is a pity to hear the news, maybe changing some water at this time may be good for the corals, make sure the source water is good, the salinity / temperature is consistent. (If it was me, I would try to do this)。 Try to keep NSW levels stable including potassium。 Also try to avoid nutritional fluctuations。 It is currently unknown why coral TN, we should carefully try to maintain these conditions, which is good.

Lost coral, maybe it is unhealthy coral itself, treat it as a "case"

Keep the Zeo-based plan and move on, replacing the water refresh elements in a balanced way. This should eliminate stress. When this pressure is removed, we consider switching the reactor flow again.

So is there a Dinos problem with tank?

In addition to Zeo products, are there any other products in use? And have the adsorbents been completely removed?
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  #39  
Old 12-15-2019, 09:18 AM
bckey bckey 目前離線
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I'm not really concerned over the few corals that were lost. It happens in reefing sometimes.

No dinos problem.

No other products in use other than the gfo which is being slowly removed over a 4 to 6 week period. Today is a water change day and the gfo will be at half the recommended amount for 100 gallons. Next time it will be reduce to 1/4 (in 2 weeks).

Overall I have been very happy with the zeovit program. It is much more hands on than other saltwater tanks I have kept. I have a mature 40 gallon tank that requires very little care and maintenance but it was started with real live rock. Now it becomes a little more challenging starting up with nothing live. It takes longer and deal with more problems than I ever did with live rock. Even with the so called bacteria startups like Dr.Tims. I appreciate all the help with the zeovit program that G. Alexander and Jacky have provided thus far. I can't say I understand all of the deviations from zeovit recommendations (dosages, media on/off 3 hrs and flow rate) but I trust your experience and longevity with the program. I feel like I am getting more personalized specific help for my tank help.
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  #40  
Old 12-17-2019, 06:00 AM
bckey bckey 目前離線
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Quick question. Is it time to cut zeobak down to 2 to 3 times a week?
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  #41  
Old 12-17-2019, 07:58 AM
jacky jacky 目前離線
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The zeolite stays in the filter for 4 weeks until you make your first replacement. This is the first change interval, and other intervals can be extended to 6-8 weeks. (The first replacement: keep the old 10%, replace the new 90%), this should be the case. After changing materials, Zeo Bac x10 days

After 2 weeks, if the coral is healthy, switch the reactor to continuous flow

Use a container, collect the reactor outlet for 30 seconds, and the volume is x120, so that you can get an hourly flow

Low malnutrition water quality, maintaining NSW parameters (including potassium to 380 mg)

After this
2 weeks / Zeo Bac x10 days /if the coral is healthy ,After switching the continuous flow,
starting the next week, ZeoBac 1 drop / 25 US gallons / 2-3 times per week.
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  #42  
Old 12-18-2019, 03:46 AM
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G.Alexander G.Alexander 目前離線
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Lets reduce ZeoBac to 2 – 3 x weekly now until the first 4 weeks have passed.

Than replace the material as Jacky has said, about 2 weeks after the replacement you can switch your reactor to continuous flow if all corals are doing fine.

After each ZeoVit exchange ZeoBac is dosed daily for 10 days, otherwise 2 -3 x weekly.

G.Alexander
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  #43  
Old 12-27-2019, 06:25 PM
bckey bckey 目前離線
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I changed out 90% of the zeolite media today. Left 10% old and mixed with the new. I don’t really understand the whole process of throwing out the zeolite rocks and putting in new ones and kind of start over again. I also changed out the carbon. I am down to a very small amount of gfo passively in a media bag. I will have it completely removed in 2 weeks. The corals are doing ok.Some good some ok and some just hanging on. Torches and zoas and duncans are great.
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  #44  
Old 12-27-2019, 10:15 PM
jacky jacky 目前離線
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Every time you change ZeoVit materials, remember Zeo Bac x10 days

If possible, change the ZeoVit material and Zeo activated carbon at the same time. Let s take a week apart, which is also good.
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  #45  
Old 12-27-2019, 11:58 PM
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G.Alexander G.Alexander 目前離線
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Quote:
Originally Posted by bckey View Post
I changed out 90% of the zeolite media today. Left 10% old and mixed with the new. I don’t really understand the whole process of throwing out the zeolite rocks and putting in new ones and kind of start over again. I also changed out the carbon.
The reason why the material needs to be replaced regular is that the fine channels, which are important to process nutrients, are blocked so the process is reduced over the time. It is more than just some kind of a biological filtration material. If you do not replace the material regular it will just be as any other filtration media providing a surface to host bacterial.

For the future I also recommend like Jacky has mention to replace the ZeoVit material and the carbon not at the same day.

G.Alexander
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