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DIY KZ Coral Snow (with >97% purity)


jedimasterben

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Just wanted to say.. I made a oopsy and dosed 40 mL instead of 4 mL. Didn't seem to bother anything but its taking most of the day to clear up instead of an hour.

 

I think I overwhelmed my poor skimmer though, it's doing nothing and looks upset.

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Dose 40mL and by morning you will swear you have starphire glass... B)

 

Seriously though, if you ever had any doubts, no casualties, the corals didn't even close up.

 

Cool stuff.

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My issue with it is it seems my skimmer is having a hard time filtering it out and ends up settling in my gravel. Any workaround?

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still using mine, actually will need to make more soon.

 

My issue with it is it seems my skimmer is having a hard time filtering it out and ends up settling in my gravel. Any workaround?

 

Do you have enough flow in your display? I guess I'm not positive if any is settling but skimmer sure gets a lot of it.

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jedimasterben

My issue with it is it seems my skimmer is having a hard time filtering it out and ends up settling in my gravel. Any workaround?

moar flow needed.

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  • 2 months later...
jedimasterben

Is the InTank bonded filter floss enough to remove this from the water after dosing? Don't have a skimmer, just an AC30

It should be ok. Try it and see.

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  • 1 month later...

So Korallen Zucht's Zeovit product line has been around for a while. It contains many products, but one that finds usefulness outside of the ultra low nutrient setups is Coral Snow. In addition, the claims that KZ makes about it are not completely absurd and actually lie in the science of it. They claim it is a 'calcium-magnesium carbonate mix' (aka MgCO3 and CaCO3). When dried, it looks like an off-white confectioners sugar, extremely fine ground powder.

 

It is essentially a calcite chalk. Yes, the same stuff that teachers used to write on chalkboards with, that is bought for pennies and sold in RO/DI at nearly $120 per liter.

 

Despite being expensive, it does have its benefits. Organics adhere to its surface, as do particulates, acting as a flocculent, being easily removed via protein skimming or small micron mechanical filtration. This leads to unparalleled water clarity.

 

Thankfully there is a cheaper way to get that same clarifying effect. You can purchase food grade calcium carbonate powder, minimum 97% purity, for around $9 per pound, less if you order more (but that's not really necessary).

 

It comes as a very fine powder. You will want to mix it with water before dosing. The amount of KZ product in each mL (after it is very well-shaken to thoroughly mix) is 0.4g. This is a bit less than 1/8 teaspoon, and this is good for roughly 100 liters aquarium volume (25 gallons). You can either just put the dry powder into a small container and mix right there, or you can create a stock solution.

 

For a 250mL solution, use 5 level tablespoons (roughly 115 grams) of CaCO3 powder and add roughly 230mL of RO/DI water. This should mix right about 250mL. The powder will NOT dissolve, it will stay suspended in the water. Will look like this when you're done.

 

20150826_190144.jpg

 

 

Mix thoroughly before dosing, and dose 1mL per 100L volume (25 gallons) whenever you feel like. No harm in doing it daily, twice a day, once a week, etc, as it gets removed from the water column. It won't raise your pH, calcium, or alkalinity, as the powder will not dissolve in a reef aquarium, the pH is too high. You can even double, triple the dose without consequence. Your tank will look like this (actually a bit cloudier, as this is roughly an hour post-dose) for a few hours, then will clear up with much higher clarity than before.

 

20150826_181336.jpg

 

 

Happy reefing!

 

Used reef snow for a while now, not sure what else zeozit guys put in it so wanted to give this a try to compare. Doing the above dosing it seems not as cloudy as zeozit, do you guys notice this as well? Only dosed 5ml of this solution in a 139g system. Looking forward to seeing if it makes a difference in clarity like the zeozit product does. Regardless cool experiment

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jedimasterben

Used reef snow for a while now, not sure what else zeozit guys put in it so wanted to give this a try to compare. Doing the above dosing it seems not as cloudy as zeozit, do you guys notice this as well? Only dosed 5ml of this solution in a 139g system. Looking forward to seeing if it makes a difference in clarity like the zeozit product does. Regardless cool experiment

It definitely doesn't get as cloudy (not sure why, maybe the stuff KZ uses is pulverized a bit more?), but the effect is the same. No contest from before and after :)

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Mikeymikemike

A tip for coral snow/DIY users. Clean your glass and equipment beforehand. Any micro algae particles in the water will adhere to the calcite and then get extracted. I notice after I clean my glass and use coral snow it takes about 5-6 days for the glass to get hazy as opposed to 3.

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A tip for coral snow/DIY users. Clean your glass and equipment beforehand. Any micro algae particles in the water will adhere to the calcite and then get extracted. I notice after I clean my glass and use coral snow it takes about 5-6 days for the glass to get hazy as opposed to 3.

That's a great tip. I've noticed that too but never connected it to using the coral snow DIY stuff.

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very helpful for cleaning / moving tank... siphoned out a lot of my sand preparing to move the tank, made a huge mess scrubbing the rocks too- dosed this crap twice and within a few hours the water is invisible! Mega nasty skimmer

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  • 2 weeks later...

I'm a big fan of Coral Snow - excited to try this! Anything to take some sting out of Zeovit costs.

 

Has anyone tried magnesium carbonate in addition to the calcium? Not sure how fine of a powder is available. Wonder if adds any benefits as well...

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  • 8 months later...

I still use it at least once a week, no negatives I've seen. I only use it after I stir up the sand and blow off the rocks, the skimmer loves it.

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  • 4 months later...
On 7/26/2016 at 2:38 PM, jedimasterben said:

moar flow needed.

I know this i super out of blue response. But I recently came back to this thread and tried it with my much higher flow tank with a much better skimmer and boy it works. 

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