Lets talk about Carbon dosing

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Aquaph8

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Carbon dosing with emphasis on Vodka/Vinegar

I had a little interest in Vodka/vinegar dosing from a couple people so heres a little write up of how I got started and basic info. I know that Vodka/Vinegar dosing has taken a back seat since the introduction of biopellets into the hobby but I still prefer the control of doing it this way. Keep in mind that Im no scientist or writer for that matter. I claim no responsiblity for anything bad that may happen to your tank or its inhabitants. Your actions are completly your own. Anybody with experience carbon dosing that wants to add anything please do so. It would be great to get someone with experience with biopellets to add some info too.

Why dose Vodka/Vinegar

Vodka/Vinegar(Carbon) dosing has been reported to fuel increased bacteria populations. These bacteria in turn consume NO3 and Po4 in a reef tank. These increased populations of bacteria are then skimmed out via protein skimming resulting in increased skimmate and lower NO3 and PO4. The lower nitrates and phosphates can also be a great way to fight certain types of algae in your tank.

Another reason to dose, is that as No3 and Po4 come down, your feeding levels can be increased. This works great for tanks with fish that require multiple feeding or for people who just like to keep their fish on the plump side :bigsmile:.

Read before you dose:

1. Make sure you have test kits for NO3(nitrates) and PO4(phosphates). Its very important you know what these levels are before you attempt any form of carbon dosing.

2. Only dose carbon if you have a strong skimmer. The increase in bacteria also uses oxygen and a strong skimmer is needed to increase oxygenation. The use of activated carbon can also help and is encouraged.

3. Carbon dosing is not recommended for people with established deep sand beds. Negative effects have been reported.

4. Your Alk should be maintained at 7-8 dkh during vodka dosing. Any higher than 8 people have reported burnt tips on their SPS.

5. Some have reported bleaching in sps. If your corals start looking light, stop dosing right away.


How to dose: (Vodka) For Vinegar use 8 times the dosage

1. Starting dose is 0.1ml per 25 gallons of tank water. This is total system gallons including sumps and after displacement of rocks and sand. Keep this dose for one week. (so if your dosing 100 gallons your dose would be 0.4 ml.

2. You dose will increase 0.5 ml each following week. (so your dose for 100 gallons would be 0.9 for week 2.)

3.Test your NO3 and PO4 often and when your levels start to drop hold your dose where its at. Continue this dose.

4. When your tests read 0 cut that dose in half and this is your maintenance dosage you will continue to dose daily.

Other tips:

- Ive noticed that dosing Vinegar with my usual vodka dosage has helped to keep any cyano bateria caused by the vodka in check. Some have also expressed postive results from bacterial products like Microbe Lift's special blend and KZ's coral snow.

-Vinegar is also 8 times weaker than Vodka for anyone that wants to increase there levels at a slow rate. There is nothing wrong with taking it slower, infact I incourage it.

-Some people choose to dose bacterial supplements with their carbon source. Some examples include Brightwells Micro Bacter 7, Probido and im sure theres a hundred others.

-Repeat- An alk of 8dkh or lower is recommended do to many experiencing burnt tips on thier SPS.

-Some have also reported bacterial blooms and hardening of the sand to be side effects. Taking things slowly and stiring/vacuuming of the sand seem to help.

-Remember that observation is your best test kit. In time you should be able to tell when something isnt right with your tank. Take it slow and be patient, vodka dosing is not meant to show results over night. For some people it can take many months. I currently only dose a small ammount of Vodka and vinegar on a somewhat new tank but Ive seen some people dose up to multiple hundreds of ml to their tank to keep their NO3 and PO4 at 0. Just keep in mind they did it over years at a slow rate. Everybody's tank has different needs and carbon dosing is not for everybody. Feel free to ask any questions and Ill do my best to answer them all. Also any feedback is appreciated cause I dont do many write up threads. Im sure I left some of my observations out and ill add to this thread as they come up. Enjoy
 
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Would you mind if I linked your thread in an article I am writing? I plan on mentioning Carbon dosing and think this has very good information and would rather link your thread then elaborate on an already made article.
 
i have just started vodka dosing about two months ago after listening to speaker murry camp on carbon dosing at macna this year and i am starting to see good results in my tank. very good information. like you said go slow and test.
 
Would you mind if I linked your thread in an article I am writing? I plan on mentioning Carbon dosing and think this has very good information and would rather link your thread then elaborate on an already made article.

Thanks, please do. Your more than welcome.

Nicely written!

Thank you.

i have just started vodka dosing about two months ago after listening to speaker murry camp on carbon dosing at macna this year and i am starting to see good results in my tank. very good information. like you said go slow and test.

Thanks, I hope you see great results.
 
Is there a preferred salt mix to use when carbon dosing? I try and keep the dkh at 7.5 but my water changes using rc is at 13dkh. I need a salt low dkh and high in calcium and magnesium.

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Red Sea
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[TD]
400​
[/TD]
[TD]
8​
[/TD]
[TD]
1300
[/TD]
[/TR]
[/TABLE]

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[TR]
[TD]
Oceanic​
[/TD]
[TD]
580​
[/TD]
[TD]
8.5​
[/TD]
[TD]
1650
[/TD]
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[/TABLE]
 
Is there a preferred salt mix to use when carbon dosing? I try and keep the dkh at 7.5 but my water changes using rc is at 13dkh. I need a salt low dkh and high in calcium and magnesium.

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[TR]
[TD]
Red Sea
[/TD]
[TD]
400​
[/TD]
[TD]
8​
[/TD]
[TD]
1300
[/TD]
[/TR]
[/TABLE]


[TABLE="align: center"]
[TR]
[TD]
Oceanic​
[/TD]
[TD]
580​
[/TD]
[TD]
8.5​
[/TD]
[TD]
1650
[/TD]
[/TR]
[/TABLE]

Im sure there is a salt mix out there with a little closer levels to what your looking for but another way to go about it is to do smaller water changes more often. This way your alk wont be thrown off so much at once. I use RC on my 225 and I do 25 gallon water changes at a time with very little change in my Alk. There is a thread floating around that has all the different levels for different salt mixes. If I can find it Ill post it here.
 
Yeah that's what I use. It comes in a gallon jug pretty cheap.
 
Other tips:

- Ive noticed that dosing Vinegar with my usual vodka dosage has helped to keep any cyano bateria caused by the vodka in check. Some have also expressed postive results from bacterial products like Microbe Lift's special blend and KZ's coral snow.

-Vinegar is also 8 times weaker than Vodka for anyone that wants to increase there levels at a slow rate. There is nothing wrong with taking it slower, infact I incourage it.



In the above quote you refer to dosing vinegar with vodka.... At what percentage do you do this since you said vinegar gets 8 times the dosage? I'm a little confused on this. Do you dose both at the same time or do you alternate each day?

Also if i were to start using mangrove plants would carbon dosing have to be stopped well in advance of this technique?

Thanks
 
Ive completely quit using vodka now but at the time I was using vodka and just added vinegar to my mix as I increased my dosage. Ive seen some people actually mix them together before hand too but they had a pretty good grasp of their maintainence dose by that point and did the math acording to that.

As far as the mangroves go Im not sure but I'd assume they wouldn't be getting much as far as nutrients once you get you system to lower levels. With that said, I do keep some chaeto in my fuge for pods to hand out in but it doesn't grow much.

Hope this helps.
 
Ive completely quit using vodka now but at the time I was using vodka and just added vinegar to my mix as I increased my dosage. Ive seen some people actually mix them together before hand too but they had a pretty good grasp of their maintainence dose by that point and did the math acording to that.

As far as the mangroves go Im not sure but I'd assume they wouldn't be getting much as far as nutrients once you get you system to lower levels. With that said, I do keep some chaeto in my fuge for pods to hand out in but it doesn't grow much.

Hope this helps.

Are you just dosing vinegar now or have you quit carbon dosing all together?
 
The reason I brought this back up, is because I have been having problems with Nitrates that i never had before. Through conversation with a friend of mine i have come to the conclusion, my problems may be from changing my tank to a bare bottom. I had the same setup for years with about an 1 1/2" of sand and never had a problem. I think I'm going back to sand on the bottom.
 
ok so I did vodka dosing for a long time and it worled well but if you miss a few days it throws your tank off so make sure you keep a big bottle of microbelift special blend on hand very cheap and easily found in a pinch. Petco carries it in stock. I hae since switched to bio pellts same principal but just go really really slow in the introduction and keep those pellets suspended. In case of a power outage grab the special blend. ;P
 
hey brett
im thinking of dosing just vinegar.never used vodka
i dose prodibio and microblift,my tank is going on 6 months my nitrates are at 20ppm
no cyno and no phosphates
im wondering will the vinegar help lower nitrates
ive used pellets in my last tank but left me with a bad taste.
if i were to use just white vinegar how would i go about dosing
i also use kalk with water top up
my water volume is 152 gallons
i perform 16 gallon waterchanges with redsea coral pro

thanks

vic
 
Last edited:
hey brett
im thinking of dosing just vinegar.never used vodka
i dose prodibio and microblift,my tank is going on 6 months my nitrates are at 20ppm
no cyno and no phosphates
im wondering will the vinegar help lower nitrates
ive used pellets in my last tank but left me with a bad taste.
if i were to use just white vinegar how would i go about dosing
i also use kalk with water top up
my water volume is 152 gallons
i perform 16 gallon waterchanges with redsea coral pro

thanks

vic

Hi Vic,Yeah Vinegar can absolutely help lower nitrates. Just follow the instructions in the first post for Vodka but use 8X the ammount. Go slow and keep an eye on your tank for any changes. So instead of starting at 0.1 per 25 gallons your gonna start at 0.8 ml per 25 gallons. So your dose for week one would be 0.48, I would just round it to .5 and then inrease your dosage by 3ml each week after. You can even bump that first dose up a little faster and be at 1ml going into week two just to make your dosage easier. Keep increasing your dosage until you see your levels coming down, once they start coming down hold your dosage. When you get them to 0 or close to it cut that dose in half. Mine linger around 10 still but thats cause I feed too much. LOL. If your alk is higher than 8, slowly bring that down before you start dosing. Alk over 8 will burn the tips of SPS when carbon dosing. This system should work great with your current bacteria dosing. Just go slow and if you notice anything negative dont hessitate to stop dosing for the time being. Let us know how it works for you and post up some pics of your progress. Sorry for the late reply, I missed your post.
 

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