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    Korallen Zucht | Coral Snow Review

      Korallen Zucht, makers of Zeovit, came out with Coral Snow not too long ago. Given the reported effects we thought we would give it a try. Here’s what Pohl and KZ have to say about the product: “Coral Snow is a liquid form secondary biological facilitator for elements such as Bbalance and Potassium-Iodide/Flouride Concentrate. It […]


    Korallen Zucht, makers of Zeovit, came out with Coral Snow not too long ago. Given the reported effects we thought we would give it a try. Here’s what Pohl and KZ have to say about the product:

    “Coral Snow is a liquid form secondary biological facilitator for elements such as Bbalance and Potassium-Iodide/Flouride Concentrate. It is also compatible with Amino Acids and Coral Vitalizer.

    Coral Snow contains a natural calcium-magnesium carbonate among other ingredients. The particles as well as the other compounds can be taken up directly by the corals. Coral Snow neutralizes unwanted acids and yellowing compounds and can be beneficial in the prevention of e.g. slime algae and cyano bacteria.

    We dose Coral Snow daily, every time with a different element, The necessary amount of Coral Snow is poured into a small container and mixed with the to be dosed element. Gently mix and let it sit for about 5 minutes. Then add it directly to the tank at an areawith high water flow. You can use 0.5 to max. 4 ml Coral Snow per 25 gallons daily. The initial cloudiness is not harmful to fishes or even the most sensitive corals.”

    Coral Snow is a mineral flocculant that took some time and tuning to convince us it was worthy of buying again.  When we first started using Coral Snow, the only positive effect we noticed was an increase in water clarity. Not a bad thing, but the clarity decreased with time and we were hoping for a bit more.

    At that time we were dosing it everyday, which we found to be too much for our system.  Water clarity didn’t increase like it had from the first few doses and it took almost an entire day to remove the cloudiness. Since switching to M-W-F dosing, it’s effects in conjunction with Vibrance (Potassium Iodide) and other supplements has been magnified and the system can remove the flocculant in a few hours.

    Currently we dose 1.5ml Monday, Wednesday, and Friday.  When doing tank cleaning or notice nutrients rising, we double the dose to 3-4ml. When dosing we add Coral Snow into a small glass bowl, as shown in the first picture and add Potassium Iodide and Amino Acids to the CS. We let this mixture sit for the recommended 5 minutes and then add directly to the display. (Quite a bit “sticks” to the bowl, so we also dunk and swish it to remove the remaining Coral Snow.)

    After dosing this is what the glassbox looks like.

    CS glassbox 

    The fish and corals do not mind at all.  In fact when adding it the tank our fish often think it is food and have swam through the direct solution as it’s being added with no ill effects. Still, we suggest adding it to a high flow area of the tank to disperse the solution as well as possible… just to  be safe.

    Our DAS EX-2 skimmer removes the Coral Snow well, taking out other nasties with it. We try and clean our glass just after dosing to help remove the released algae and nutrients. I have no idea if this works or not, but the timing of it works well for us. This skimmate is very chalky, murky, and opaque. To be honest it’s just disgusting. This is just 2 hours after adding Coral Snow to the system.

     CS DAS

    This is quickly skimmed out creating a cleaner, crisper display tank. Here’s a close up of the skimmate… Yum? Edit: Bob (Aged Salt) on the friendly Zeo Forums informed us that Coral Snow is completely free of Al. We’ll take his word on it. 

     CS Skimmate 

    After feedings or sticking our hands in the tank, we have found that Coral Snow can rebuild the foam head quickly.

    Overall we are very happy with the results. The increase in clarity, when combined with activated carbon is very impressive. We went two weeks without dosing and noticed an increase in algae, and colors fading in our Acroporas… since resuming the algae is going away and colors are coming back. Granted we also dose a small amount of KI and AA’s, but we feel those changes are worth noting. We do not feel it will eliminate algaes, but we do believe it will help contribute to a low or “ultra low” nutrient environment.

    Gary White (mesocosm) and others have brought up the role these “transporters” can play in delivering trace elements and food sources to the corals. I can’t say this is what has happened, but the results are strong enough that we will continue to use Coral Snow in the future.


    1. June 28, 2008 at 9:44 PM | Permalink

      would you recommend dosing coral snow via an automated doser or should it be mixed by hand each time?

    2. June 29, 2008 at 7:56 AM | Permalink

      Hi Keith,

      I wouldn’t recommend using an auto doser. The Coral Snow does settle quickly and when in high concentrations “coats” the container it’s being held in. I would be worried it would eventually clog up the peri’s tubing.

      If you were to dilute it with RO/DI (which is likely what you were thinking), perhaps… but we have not tried that. If you do let us know how it works!

    3. June 30, 2008 at 10:14 PM | Permalink

      Hi e&f~

      Very nice thread and thanks for sharing experience~!!


    4. June 30, 2008 at 11:31 PM | Permalink

      one more question~

      What is your vibrance quantity?


    5. July 1, 2008 at 7:45 AM | Permalink

      Hi Vince,

      We add just 2 drops to the CS solution for 100g total volume. We’ve tried adding more, but did not notice any real changes in coloration.

      When adding more, we did notice it effected our shrimps molting cycle.

    6. Reeferdude
      December 22, 2009 at 4:24 PM | Permalink

      Hi I run a 75g mixed reef hybrid miracle mud system with skimmer mce600 .
      When using coral snow I assume it is better to add the product then run the skimmer a couple of hours later or does this matter if the skimmer is allready running.

      By the way the review was great reading thanks.

    7. Nicholas Sadaka
      December 23, 2009 at 8:45 AM | Permalink

      Hey ReeferDude-I’ve been running full zeo for probably about a year and a half and I can tell you that while it’s been discussed quite a bit, there’s no real evidence that running your skimmer while using Coral Snow or any other zeo product has any kind of effect. You should be able to run your skimmer while dosing Coral Snow. You can certainly turn it off if you choose, but it’s certainly not neccessary. Hope that helps some.

    8. Reeferdude
      December 23, 2009 at 10:33 AM | Permalink

      Hi Nicholas

      Thanks for the info ,I decided to add coral snow with the skimmer of for 1hr then turn it back on. And the water clarity looks crystal clear so thanks for the info peeps it seems to be a realy good product well pleased.

    4 Trackbacks

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    3. […] These Zeovit additives can be used on Non-Zeo systems or full blown Zeo systems as well. We use Coral Snow 2x/week to help keep the water extremely clear. It is a clay mineral flocculant that binds and clarifies; for more information you can read our Coral Snow review here. […]

    4. […] Snow. Based on the description, and to be frank the blue bottle too, it sounds just like ZEOvit’s Coral Snow. Warner states the product is a blend of multiple carbonate based “micro-fine […]

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