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  #31  
Old 10-31-2016, 02:36 AM
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G.Alexander G.Alexander 目前離線
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Would recommend to wait using those products until corals tissue starts to get lighter.

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  #32  
Old 11-30-2016, 04:56 PM
StevenmegZ StevenmegZ 目前離線
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So we still have an issue with a brown coloured film algae, i still don't believe it is cyano but does have similar characteristics such as leaving a film over the sand bed and in some cases stringy. We just picked up a bottle of coral snow and amino acids. So would like to start dosing the coral snow right away but not sure if I should mix it with ZEO back or dose it alone and how much and frequency?

Right now on our 190litre tank we dose:
0.2ml start3 twice a day
2 drops ZEO back twice a week
2 drops spongepower twice a week

We've tried eliminating spongepower from the routine but saw no change.

The film is only on the sandbed and not the rocks. After I vacuum the sandbed weekly it returns that night. It begins to form on sections of the sandbed that have crests or hills that leads me to believe it is a flow issue but we have 2 tunze 6055's working in sync.

Any advice would be appreciated!


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  #33  
Old 12-01-2016, 02:37 AM
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Can you please tell me which kind of sand you have used ? Does the stuff disappear over the night and regrow back if lights are switched on in the morning ?

G.Alexander
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  #34  
Old 12-01-2016, 11:11 AM
StevenmegZ StevenmegZ 目前離線
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Sand we used is: Caribsea seafloor special grade reef sand (1-2mm).

It is harder to see at night due to the brown colour but it is still present.
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  #35  
Old 12-01-2016, 08:36 PM
StevenmegZ StevenmegZ 目前離線
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I think I have a plan....lol.....

Going to alter my dosing from
0.2mL start3 twice a day
2 drops zeobak twice a week
2 drops Sponge power 3 times a week

To

0.1mL start3 twice per day
2 drops zeobak 3 times a week mixed with 2mL coral snow
2 drops spongepower 2 times per week

I would stop dosing start3 completely for 2-3 days til the algae resides. I'm not sure how this will affect the system so hoping to get your blessing or recommendation on this G.Alexander. Any thoughts or alterations to this plan?
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  #36  
Old 12-02-2016, 02:12 AM
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I can not really tell you what it is from the pictures, if it does not disappear over the night it should no be dinoflagellate might be diatoms.

Have you already tested your RO water for silicate and or do you use a Si filter resin as the last stage of your RO unit ?

If you stop ZeoStart for a couple of days you should not experience much issues or biological shifts but I expect it will also not solve the problem, reducing it for some time while keeping a eye on the PO4 level would IMO be the better idea.

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  #37  
Old 12-02-2016, 07:03 AM
StevenmegZ StevenmegZ 目前離線
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Yes we have a tds meter on our RODI unit. Incoming is 140 and outgoing is 0.
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  #38  
Old 12-02-2016, 10:50 PM
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I have personally had zero TDS meter readings while there was still Si in the water. Do you have a chance to borrow a Si test kit to check the level ? I can not tell you if this is the case but you have to rule out things step by step. Another idea is the lighting spectrum. Do you already own CoralSnow ?

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  #39  
Old 12-04-2016, 09:44 PM
StevenmegZ StevenmegZ 目前離線
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I will order a Si test kit tomorrow. We are using one of the preset schedules on our radion xr30w pro. Yes we received our coral snow a couple days ago, not sure if it's best to dose solely each day or only with the zeobak 2 or 3 times a week? Really appreciate your help isolating this issue!

Ps. Now that I'm looking for the algae in the tank at night I don't see it, I only saw one string flying around but nothing else when it was clearly present this evening.
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  #40  
Old 12-05-2016, 03:27 AM
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You can try to mix 4 ml CoralSnow with 2 drops ZeoBac dosing the mixture once daily for one week. While doing this no separate Zeobac addition is necessary. Switch off the skimmer for 2 hours while dosing if possible.

So does the stuff grow back when the lights are on again.

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  #41  
Old 12-05-2016, 08:16 PM
StevenmegZ StevenmegZ 目前離線
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Today it was back and now that the lights have gone off it is gone again. I can still see very small remnants of it, mostly around the glass but even shining a flashlight at the sand bed I do not see any of it.

I'm not sure if it's growing back or not as it seems to get worse as the week goes on but goes invisible at night. Does this tend to be one type of algae over another?

I've done the first 4ml CoralSnow with 2 drops ZeoBac dose and will continue each day for a week.
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  #42  
Old 12-06-2016, 02:26 AM
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This is common for dinoflagellate, do you have access to a microscope ?

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  #43  
Old 12-06-2016, 08:33 AM
StevenmegZ StevenmegZ 目前離線
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I can go buy one. What kind of magnification would I need?
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  #44  
Old 12-07-2016, 02:09 AM
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Nothing special those cheap hobby microscopes do usually work well. If those are Dinos you should see moving cells spinning in circles under the microscope. I have posted a short video sequence (klick on the first picture) over here:

http://www.zeovit.com/forums/showthread.php?t=20208

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  #45  
Old 12-30-2016, 02:50 PM
StevenmegZ StevenmegZ 目前離線
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So we've completed a silicate test. Results were 0.5mg/L with a low range test. From my research this should not pose an issue. Although it may differ if I were to stir up the sanded first then take a sample for testing.

Below are a few images under the microscope of the algae present on the sand bed. Looks to be some signs of Dinoflagellates and I believe diatoms (Will need someone to confirm though). Dinoflagellates are few and far from each other, I'm not sure as to the ratio where they would pose an issue or if just having any is an issue.

Please let us know your thoughts. Thanks!



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