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Discussion Starter · #1 · (Edited)
I’ve probably beaten this subject to death but somehow people keep replying to my posts. So let’s bring it up to the top and start again fresh without all the deeply nested posts.

Here is the story, some people (ie Tom Barr) think that CO2 controllers are useless and some people (ie. Ray-the-pilot) think they are great.

Now here is the story from RTP.

When you control the CO2 in your tank with only a bubble counter, this is the same thing as heating your house with a wood burning stove.

While it is true that people have been heating their homes with wood burning stoves for centuries, there are some problems with wood burning stoves. For one thing it is hard to control the overall temperature of your home. You have to tweek the stove on hot and cold days. Another problem is that there are hot spots and cold spots in your home. This is a result of the nature of this type of system. When you rely on a heat in = heat out method of control you have to expect some places will be hot and some will be cold and you have to expect that on hot days, your house will be too hot and on cold days, your house will be too cold.

So how do people cope with these problems? Well they add a “Temperature Controller” (ie a thermostat) to their heating system. The thermostat goes on when the temperature is too low and goes off when the temperature is too hot. The result is that the temperature changes that occur in your house due to swings in outside temperature are almost non existent and the temperature differences in your home are dramatically reduced.

Now I realize that a wood burning stove is romantic and yes your pipes will not freeze if you heat your home with a wood burning stove but really do you want to heat your home with one?

Well a bubble counter is exactly the same thing. All it does is add CO2 to your tank. Like the wood burning stove all you can do is increase or decrease the CO2. There are hot spots and cold spots and the CO2 level changes with the activity of the plants and fish. The bubble counter relys on the same primitive technology CO2 in = CO2 out. So how do people cope with this problem?

Now I’d like to think that they would add a CO2 controller to their system but strange as it may seem they say:

1. Tom Barr doesn’t do that.
2. Fish can take it.
3. I don’t have one and everything is fine.
4. You (i.e. RTP) are an idiot

If anyone, including and especially Tom Barr, can say anything different from the above I’d like to hear from them.

One other important point: I‘ve said this before, Tom Barr is a talented and artistic aquarium keeper. I do not mean to imply that he cannot grow plants well. He is a pioneer. What I am saying is that there is a technology available that can revolutionize the aquatic plant growing hobby that needs to be developed.
 

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Discussion Starter · #3 ·
Re: Why live with a wood burning stove?

Actually, there is much more of a difference in CO2 concentration than you would believe. I can quote Tom Barr on that point:

http://www.barrreport.com/co2-aquat...eal-time-data-localized-co2-ppm-readings.html

The reason you don't see much of a difference in aquarium temperature is my point. Your aquarium temperature is controlled by a temperature regulator. Your CO2 is controlled by a wood burning stove.
 

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Discussion Starter · #5 · (Edited)
Re: Why live with a wood burning stove?

May I say that your post falls into all four of the categories previously denoted;

1. Tom Barr doesn't do that.
2. Fish can take it.
3. I don't have one and everything is fine.
4. You (i.e. RTP) are an idiot

Let me ask a simple question. Suppose we set up two houses side by side. In one we have a wood burning stove and in the other we have a modern temperature regulated heating system. As a test we say "Do the pipes freeze in winter." It is obvious that the regulated system is no better than the unregulated system. But despite this rather ridiculous evidence, I wouldn't switch my heating system to a wood burning stove.

Here is the problem with your experiment. Your premise is not falsifyable. What that means is this: yes, plants and fish can grow without a controller so it is impossible to show that something is wrong with an experiment that uses as a test "can plants and fish grow without a controller."

Now here is the test that I have done.
Start by reducing the CO2 in your tank to 0 by running your tank through 2 photo cycles. Then gradually increase your CO2 by 3-5 ppm per week keeping your tank CO2 uniform. When your fish show a change in behavior that is the maximum level of CO2 for your tank.

Using that test your method fails miserably because you cannot even say what the CO2 is in your tank because it is all over the place even from one spot in your tank to another. This in science is called an "out of control" experiment.

I'm sorry, if you want to do scientifically accurate experiments, you need to have control over the variables. That includes CO2.

BTW while pH in nature can vary quite a lot, CO2 in nature is consistently below 1 ppm. The level of CO2 in most planted tanks is at least 30x normal and some people claim that their CO2 varied by more than 10x per day. That is not very good for fish even if they do live.
 

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Discussion Starter · #13 ·
Re: Why live with a wood burning stove?

Well you still haven't answered anything.

The question is what is the best level of CO2 in your tank (within 2-3ppm) and what effect does changes from this level have on your fish. I know this because I tested it.

BTW let me explain this again CO2 in nature is less than 1 ppm. What evidence do you have that 30x this with swings as much as 10x are good for your fish.

I've checked and calibrate my equipment and tank and do not believe that those are safe levels.

Actually since you don't have any control over your CO2 you cannot say what is safe except that none of your fish have died yet.

Now here is a really tragic piece of the puzzle. If your fish actually spawn, you have no idea what caused it because you do not know what is going on in your tank.
 

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Discussion Starter · #15 ·
Re: Why live with a wood burning stove?

No actually the reason I started a new thread was because there were too many nested threads and I couldn't find all the people who made comments.

Unfortunately on this forum, the threads disappear after they get too deep and it is hard to find a new post.
 

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Discussion Starter · #16 ·
Re: Why live with a wood burning stove?

i just want to clarify a few things from this post so that others who happen upon it don't become confused with some of ray's comments.

All that's left are hooves.

Completely wrong... you control the CO2 in your tank with your regulator and needle valve. The bubble counter does just that, lets you count the bubbles of CO2 being injected into your tank. You actually don't need a bubble counter, it's just a very good visual aid showing how much CO2 is going into your tank at a specific rate.

clear as mud folks? cool. please resume the horse beatings.
I'm not sure if this is a joke but I will stand corrected. Yes you do set the rate with the needle valve and you use the bubble counter to measure the change. I'm not sure what your point is? This is a CO2 in = CO2 out system. What are you trying to say?
 

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Discussion Starter · #19 ·
Re: Why live with a wood burning stove?

RTP, why do you drive a car that is not direct injection?

Why dont you use solar energy to power your house?
Can I make a point here. If you want to talk to me it is better to link to my original post and not to some one else.
This causes the nest to get too deep and I cannot comment on your post.

Getting back to your question I'm not sure what this has to do with a CO2 controller. Are you saying that they are too expensive?
 

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Discussion Starter · #22 ·
Re: Why live with a wood burning stove?

OK, YOU WIN! CO2 controllers are the best thing ever invented. Keep using yours, and I'll keep using my wood burning stove, because it works wonderfully!

Oh BTW, I have a pH meter that I have tested my water throughout the period of the photoperiod. pH drops to 6.3 in about 2 hrs after the CO2 turns on and doesn't move off that point the whole day!

Now please tell me how a CO2 controller would benefit me!!!
I love you and I cannot win since this is not a contest!

You didn't say what the pH was at the start? I'd be curious how much of a pH change you have. As a rule of thumb 1 pH unit = a 10x change in CO2.
 

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Discussion Starter · #24 ·
Please Read This

Thank you everyone for your posts!

I would like to reply to everyone and will try to do so but can you follow some rules about posting.

If you want to call me an idiot please link your post with my original post. That way I know you are talking to me.

If you want to comment on something that someone else says link to their post and I will ignore that post.

When the nest gets so deep that it doesn't appear on your screen it is better to start a new post and reference what you are commenting on.

BTW I expect that any new technology will meet with some resistance and I do not think this group is really too difficult.

Peace RTP
 

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Discussion Starter · #27 ·
Re: Why live with a wood burning stove?

My pH starts at 7.3 and goes to 6.3. Please tell me what is wrong with a 10x pH change! If the CO2 starts out at 2-5ppm and you go to 20-35 that is a 10x change. Provide some evidence this is bad, and I'll start to listen.
Well first let me point out that if you assume that the original level was 2-5 then your estimate of the 10x increase is 20-50 not 20-35. Also how do you know that the original level was 2-5?
Since you do not have a controlled system, how do you know that there are not places in your tank where the CO2 is higher still?

Look I'm not telling you that your fish are going to die or your plants will wilt. What I'm saying is that without control over your tank you don't know what is going on and it can be way out of control before you know it.
 

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Discussion Starter · #30 ·
Re: Please Read This

I don't get what is so complicated here...You ask a question and get a response.

I actaully am beginning to think you are getting more enjoyment with people calling you an idiot. What are you trying to prove!!! Please tell us all. Everyone is having success, success, success, without CO2 controllers. And yes, people are having success with them. CO2 controllers are not new technology at all! IF ANYTHING can solve this rediculous back and forth it is that the CO2 controller is a luxury, not a necessity.

But, I'm sure the dead horse will continue to be beaten, and beaten, and beaten, and beaten.
It makes you wonder? If a person doesn't know how to follow posting rules how they can grow plants!

Can you link to some pics of your tank? I'd like to see how this mind works.
 

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Discussion Starter · #34 ·
Re: Please Read This

Yes you are right but I cannot find them easily and they are not referenced in order.

If you want to call me an idiot you have to do it in a way that I can easily respond to and that is in a linear mode.

Sorry, that is my rule. You have to live with it.
 

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Discussion Starter · #35 ·
Re: Why live with a wood burning stove?

Click on my ID there is an old pic of my tank there.

BTW I'm not trying for a garden with my tank. My tank is a biotype and I want it to look like a natural setting.
 

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Discussion Starter · #38 ·
Re: Why live with a wood burning stove?

YOU DON'T GET IT.

LOOK at the table I liked you to! The KH is THREE. LOOK!

There is variation, not every KH test kit and pH meter are perfectly precise. That is why the table gives you a range. And since we know CO2 is not the same in all areas of the tank, how are you controling your tank with just one pH meter (co2 controller)?...hmmm. How do you know you don't have areas in your tank with higher CO2!

But, my tank, as you say, is WAY out of control. If your saying that your CO2 controller is a safeguard against any kind of problems, that is just wrong. Your CO2 controller can malfuntion just as easily, probably more easily, as my needle valve.
Just keep on beating.
The temp in my house doesn't change much because I have a temp controller. Just like your temp. controller in your tank.

My wood burning stove doesn't have a controller so the temp is all over the place. Near the stove it is hot, near the window it is cold.

I don't need 10 temp controllers to control the temperature in one room I only need one.

A CO2 controller works the same way.

You know that pH measurement doesn't give you an accurate estimate of your CO2 level. How do you know that pH 7.3 in your tank is not 15 ppm?
 

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Discussion Starter · #43 ·
Re: Why live with a wood burning stove?

Well I'm sorry but you've reached your limit. I cannot respond to any of your posts since you cannot folloe the rules.

Peace
RTP
 
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