Added: 2 years ago
From: Handini7
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  • Putting it in the filter is no good and putting it in the exhaust is pointless because it doesn't allow the bubbles to diffuse. I would run a line to an under gravel bubbler and then stack bigger rocks on top of the gravel over the bubbler. The longer you can keep the bubbles underwater the more time they have to diffuse. Good vid.

  • few tips :

    * there is too much water inreactor

    * use a 2nd little waterbottle in serie to avoid alcohol in aquarium

    * inject in tank on OUTLET, not INLET of filter (because CO2 is to feed plants and not to feed your filter)

    * CO2 is not ment in the first place to lower pH for fish, but to feed plants.Too much CO2 can cause CO2 intoxication of your fish.

    * ALWAYS disconnect CO2 at night > use extra valve that you open at night (no fotosynthese + plants produce CO2 while using O2 at night).

  • @TheBSideDJ That's a little over doing it. My method is more practical and I haven't had any issues. Those who do may be putting too much yeast and not the amount shown.

  • ....look at it go.....lol

  • Q. to much Co2 can kill your fish right, so how do you know when there is too much in the aquarium? how do you monitor it.

    very simple easy step by step vid. I like it

  • just drill the same size hole in the lid and pull the hose through,its better than a rubber plud

  • @cntsay1 Sure, if you don't want a good seal between the bottle and the tube.

  • I have found that you can drill a hole in the original screw on stopper and then push through the check valve or tubing connector without the need for any glue or sealant. Use a drill bit that is of smaller diameter than the check valve connection. If the hole is too small, just use a conical recess bit to make the hole gradually bigger until the connector just pushes through. The seal will be air tight.

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  • @Remydog145 It will activate on it's own. The time it takes for the bubbles to appear depends on how much yeast you use. Using a lot will produce bubbles sooner but you will have to replace the sugar/yeast mixture sooner. A small amount is all it takes but too little may not produce any bubbles at all.

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  • @Remydog145 You have to have yeast. Yeast metabolizes the sugar and releases the CO2. Cane sugar is still sugar which is eaten by the yeast so it works.

  • What about Diet-Coke and Mentos?Would That Make More CO2? i Don,t Mean To Sound Like a Smart Aleck. and I want To say ,..I really appreciate you guys putting this stuff on sites like YOUTUBE . For Uneducated People Like Me. Keep Up The Good Work!

  • what kind of yeast is that????

  • @steyr28aug Just regular yeast one would use for cooking.

  • Assuming we all have a drill press xD jk.

  • I made it but i heard u hav to turn it off at night so in ur do u take it out at nite or wzt??????

  • So you use the filter to chop the co2 bubbles up?

  • plants breath CO2 =)

  • 1) an aquarium expert told me that CO2 should only be injected during the day, when plants need CO2 ... does it harm it when injecting during night ? (night = reverse cycle when plants need O2 and no CO2).

    2) i heard about filtering it on a second water bottle (filter) after the fermentation bottle to eliminate alcohol that is transported together with the CO2-bubbles.. is that necesarry ?

    3) regulation. Ideal is about 30 ppm CO2... but there's no exact control ?

    tanx for answers !!!!

  • can you really see the difference after using CO2? if so how long is that gunna take? thnks

  • umm.. a quick question!! why do we need a CO2 system in our aquarium again ??

  • @satrap021 For the plants.

  • @Handini7 Can't you just hold your breath until you can't stand it, then let it out through the tube, then repeat for a couple minutes? Granted, you would get light headed, but in theory would that be enough for your plants?

  • So, do you drink the liquid in the jug after the yeast has turned it into alcohol?

  • not to be rude or anything, but if too much co2 coms out wouldnt that damage the filter?, because as far as i am aware i know that any air in the filter is a bad thing.

  • @alilmutaqaat

    If the filter media comes before the impeller in the path of the water through the filter then the bubbles should be trapped by the media and slowly diffuse into solution. The few bubbles going into the impeller should not be too much to damage the filter.

    What is ideal is to have just enough yeast mixed in with the sugar. A bubble every minute or so is good.

  • @Handini7 Problem, your injecting Co2 into your filter and this will aid in the build up of anaerobic bacteria, this is not the good kind that eats Ammo/Ni/Na, these will compete with your good bacteria in your bio-filter, not really a good idea, i would say its good to set this up on the out flow, not intake

  • @juane1l It shouldn't be an issue since the bubbles are slowly entering the filter intake. This doesn't let the CO2 overwhelm the bacteria.

  • @alilmutaqaat OMG some posts are awesome LOL

  • I have made my this twice n still dont work... I have waited two days after each attemp, but there is no fucking bubbles coming out of the tubing lol, sorry for the language... can someone help me? what am I doing wrong? Is it warm water, cool water, cold water or wat? am I using too much sugar or too little? I got no Idea anymore :(

  • @rebelporro

    Check the direction of air flow in the check valve. You could add a little more yeast also.

  • @Handini7 I just bought a CO2 reactor and I dont see any bubbles coming out of it. Does it take time for the powder stuff to react? What should I do?

  • @david052856

    The bubbles don't start to form immediately. If you don't see any forming after a day or so then it may need a little more yeast.

  • @Handini7 Thank you!!!!!! Is working now, I added more yeast and It took about an hour and started to bubble lol. do you know how long does it takes to start noticin a change?

  • @rebelporro

    Your welcome. Just note that more yeast allows it to produce bubbles sooner but you will have to restart the process sooner.  Less yeast will take longer to start forming bubbles. Too little yeast will not do much.

  • @Handini7 Alright, thanks I got u... I already can see changes in my plants.... they look awesome :D........

  • @rebelporro

    Your welcome. Glad it worked out.

  • nice video buddy ! i just want ask 1 thing ! for how many days it will make co2 ?

  • @MrAceaceaceace

    It will vary based on how much sugar and yeast you use.

  • Great idea on the rubber stopper. Most CO2 tutorials uses the screw cap and then silicone the tubing to it. Not a secure method. I think your rubber stopper method ensures a good seal. Thanks for the tip.

  • feeding the co2 in to the filter cant that damage the good bacteria in the filter as it needs good oxygen

  • Great video. Thank you for that. If I may, a good tip is to use water from one of your regular water changes from the tank. Water from the tap is not as good. I have a bucket I keep in the kitchen that has fish water and I use it for my terrestrial plants and my CO2 DIY.

  • can i just connect a tubing to my Mother in law Nose while She's sleeping and connect it to my Aquarium??? by the way Nice video Thank;s

  • Your welcome. Your mother in law must be a deep sleeper.

  • @chardnj This would be pointless because plants use oxygen at night, not CO2, so your mother in law's CO2 would have no effect LMAO. Unless she sleeps in the day?

  • @chardnj: yes, but the risk to self would be too high to make it worth while.

  • @chardnj That comment made me almost shit myself.. Thanks

  • by the way my tank becomes blur after i made my own CO2 generator. what causes this?

  • @smoochy23 The Sugar/Yeast Solution inside your reactor got mixed with aquarium water. Probably you did not use a one-way check valve to prevent aquarium water from siphoning into your CO2 reactor bottle. Or the water in your reactor is too high as to reach the stopper. You must leave enough space for foam to form without touching the tubing. You could also place the CO2 reactor bottle higher than the aquarium to prevent water from the tank from siphoning off into your reactor.

  • thank you

  • I make mead, and when I saw the part about the sugar-and-yeast water under the aquarium, I started thinking about having my meads ferment under my son's aquarium, and attaching a tube to my carboys' vapor locks! Two birds with one stone! (Mead is wine made just from water, honey and yeast. No fruit at all)

  • That was very informative, thank you.

  • nice work! but how long dose this last? and im thinking of doing this, so wht if i dont hook it into the filter, would it still work it it just hanging there? and wht it the suger water get into the tank insted of the co2, wouldnt it kill the fish? And why cant the plant just live off from CO2 from the fish ?

  • The length of time depends on the ratio of sugar to yeast. More yeast creates CO2 bubbles sooner but lasts less time. Too little yeast will not allow CO2 to bubble into the tank. The Filter is a simple way to allow the CO2 to dissolve into the water without purchasing a reactor. Just letting it bubble into the tank is inefficient.

  • I don't think a little sugar water going into the tank will do much damage but if you're careful and don't set it up with haste this won't happen. Plants can just live off from CO2 from the fish but it's not enough CO2 to make the plants thrive.

  • I would be careful when running your co2 into your filter intake, as the co2 bubbles will eventually create an air pocket inside your filter. In turn the air pocket will cause your filter motor to burn out because they really don't like air pockets. A better idea would be to make a reactor chamber that runs inline with your filter exhaust.

  • If the filter is designed to where the water is filtered before it runs through the impeller, this shouldn't be an issue.

  • Nice work. However, I would not recommend to keep water level so high in container. Sooner or later the yeast will come to aquarium (nasty thing). Half a bottle is enough.

    Also some external filters will make noise when with any gas inside and it is probably not healthy for bacteria colonies in the filter to have high co2 levels. Make a proper co2 reactor instead.

  • Hello, I think you have made a excellent movie there. Very nice, thank you. I use an Dennerle system that works perfectly. But I´d like to use your example in my 12L tank, that I´d like to use as a nice plant-aquarium with co2. I hope it will work. Just one question. You use sugar right! And the other thing must be the german word "Hefe"/ "Trockenhefe"? Am I right?

    Thank you very much...

    Fishing regards from DK, Heiko...

  • Hefe according to my iPod is the German word for Yeast which is the ingredient you add along with sugar.

  • why do u need to put it in your filter

  • @usmcrdsd To let the impeller dissolve the CO2.

  • do you add any H2O to your tank for your fish?

  • @damashers Of course. Fish are aquatic creatures. They can't survive without H2O.

  • @damashers ya im a big dummy..I ment do you add oxygen to your tank,I just started a tank and I killed all of my fish with to much CO2,so when I add oxygen the second batch of fish our doing well

  • @damashers I've never had the need to add any O2. Did you have a steady stream of CO2 bubbles when you set it up or did you have a bubble every couple of seconds or so?

  • Excellent instructional there Handini! Currently have one of those Hagen ones with the rail-type diffusers, but I don't think it's got enough ass to be in my 55 gallon. Going to have to give your method a shot because the filter will probably allow better dispersal.

  • how long does thish homade co2 unit last

  • @rooster31096 It depends on the ratio of sugar to yeast.

  • @rooster31096 It depends on the ratio of sugar to yeast.

  • sugar and yeast, i'm gonna have to try that, thanks

  • Hey thanks, this was awesome! I use hydro sponge filters only, what are your suggestions for placing the end tubes. Can I just directly drop the CO2 tube into the tank without a filter to cyle to the co2 itself? Thanks in advance. :)

  • I just feed the end tubes into the intake of the filter and let the impeller dissolve the CO2. If you just drop the tube into the tank it will be less efficient at dissolving but will still allow a little CO2 to dissolve.

  • Cool man, real helpful... I got the same Fluval filter as you, I was curious as to how you were going to introduce the CO2 into the intake pipe of the filter. Does the Fluval allow that to work good like that? I was worried about large air pockets forming in the canister, and then air locking the pump. But it works???

  • I never had to worry about air locking the pump, especially since the CO2 bubbles slowly into the filter.

  • Very helpful thank you.

  • wow this was a very informative video, thanx for taking the time to explain everystep i hope it works

  • Plants need CO2 in order to photosynthesize, which they only do when it is light out. When it is dark, they 'respire,' which is a time when they use oxygen, and will usually need more oxygen than a tank has, especially when using a CO2 system. Some have said you should have an air pump going during the night, and have the CO2 system turned off. Is this something you do? or Do you find that this is not a problem for you?

  • my tanks tep is 24c and has a blue neon lightning and i just connected my co2 ..would my plantes get better no or do i lower the tepitture

  • and low nitrate

  • WOOOOAH LOOK AT IT GO

  • How do u diffuse the co2 in water? I would attach an air diffuser to the end of the tube...

  • Don't bother with air diffusers or expensive reactors. Just feed the tube into the filter intake and let the impeller diffuse the CO2 for you.

  • @Handini7

    Good idea,,,thanks

  • how long will the co2 last, how often do u change it

  • It depends on the amount of yeast and sugar you use. More yeast will make it bubble more but in the process you may have to replenish it sooner. Less yeast will make it take a while to produce bubbles but will last longer. If you give the yeast more sugar they'll be able to feast for longer so that too will affect the length of time.

  • by putting hose into filter wont it defeate the who thing? wont the filters filter the co2?

  • @farc187 The CO2 will not be filtered out by the filter. The filter impeller will force the CO2 to dissolve in the water.

  • way way WAY freakin cool dude!

    great job!!

  • Do you have to worry about ethanol diffusing into the tank?

  • Not really.

  • Please, some help.... I shake the bottle and I think some of the solution when inside the tank.... What do I should do????

  • I wouldn't worry about it.

  • How long will a container like that last before having to change it out?

  • It depends on the amount of yeast and sugar you use.

  • I see you have the CO2 line inside the tube, that sucks the water to the cannister filter. I would like to try the same thing but Do you thing that air (Co2) going inside the cannister can damage the motor. Please advice bro!!!! and also How much solubility can I obtain by follow this process. Thank for sharing!!!

  • Both air and water are fluid in nature so I don't see any possibility of the CO2 affecting the impeller or any other component. Don't forget, the filter intake also sucks in debris from the tank like dead plant material, fish food, fish waste and sometimes gravel. Since filters are designed to filter out a lot of organic debris there should be no problem with the CO2.

  • Wow, then I don't need to buy a difusser or something similar... Cool. Thank you for your help... By the way great video!!!!

  • Hey Man ,

    You should add a cleaning bottle between the DIY co2 and your aquarium to get the alcohol and other stuff out of the air before it goes in your aquarium

    POeace please add in video

  • Can any one help me?

    I want to make a tropical aquarium in Tarai of Nepal, where temperature 5◦ in Jan and in rest months it varies from 20 to 38◦ Celsius. The tank will be built in the open courtyard. The size will be 3m X ½ m X 1m. The three sides will be walled by stone or bricks and the front side will be walled by 10mm glass. For this capacity, what kinds of water heater, and water recycler should I purchase? Or other devices? Thanks!

  • this is an awesome idea, ill probly make one if ill have a bigger planted tank ;P

  • wow Great video, i'll make one, Thanks for your help.

  • It depends on how much yeast and sugar you have in there. You'll have to see what works best with your setup.

  • with a juice container with sugar and yeast on it... how long will it last to mix another sugar and yeast?

  • for one juice container with sugar and yeast on it...how long will it last?

  • what did you mix sugar with something that don't understand

  • Yeast

  • you use sungar and ???

  • Yeast.

  • Not bad, Does your mix ever foam up a little bit? Mine usually does so I leave the water line inside the bottle about 2/3's the way up otherwise yeast/sugar foam works its way up the tube and into the aquarium, making it cloudy.

  • It doesn't foam that much. The jar of yeast is stored in the refrigerator so it probably takes a moment to activate. Some water however does go up the tube if I'm not careful when I pit the stopper on the bottle.

  • sweet

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