How to make easy CO2 for your tank? Cheap and easy DIY CO2! 

How to shut it off co2 at night?

@@gguabes With this stuff I don't (plastic bottle would break). But you can do the opposite: turn ON the air pump. This way O2 will be pumped inside and create a lot of surface movement. This is enough to avoid high CO2 level. And if you don't want that, you can raise filter outflow to create the same effect. In general surface agitation is the key to avoid CO2 spikes (I'm monitoring it with drop checker: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-Czix6XwZzc8.html)

What's the purpose of the small bottle?

Thank you! I'm glad you liked it :D

Yes, it is :) No problem. Very soon I will also show the results of using CO2 for this tank ;)

I'm glad you liked it :) Thanks for watching!

Thank you 😊

Thank you! :)

Thank you! Cheers!

Great, thank you! Yes it's very effective, but remember that in very small tank you have to control CO2 levels during the night. You mention electric pump you bought. It is pumping Oxygen (O2) not Carbon dioxide (CO2) - sorry if this is obvious, but just wanted to check if you are not confusing those ;)

@@AquascapingCube i was wondering that as well. How often should co2 be introduced into the water column? And what is naturally causing co2 in natural water sources? Maybe i will look it up!

Yes, I always liked the effect of co2 coming out of diffuser :)

Not really as sugar activates the yeast & creates Co2 it's used in wine making too.

Thank you! Glad it was helpful! Diffuser is from Amazon, something like this: amzn.eu/d/deOzsiq

It’s never to late;)

No, it's not normal. Pressure is probably pushing the water out. I would keep lower water level at the beginning, and check the exit from second bottle: is should be high, very close to the cup and above the water level.

Really would like an answer to this as well, and find out what kind of valve it is

Me too, what is it for?

To make sure that side of the hole is completely closed. Usually you don’t need two holes on the big bottle. But also secondly sometimes that valve acts as a safety if you want to reduce the pressure inside the big bottle

How do you tell if you need to reduce the pressure in the big bottle?

​@lillin5916 if the bottle is way to hard or feel like it's ready to explode (aka pop a top) ..etc

It's a filtration system. Sometimes solution in the first bottle creates a lot of foam and can "raise up" because of the reaction. If it gets high enough it can get pushed through the tube and into the tank. Second bottle prevents that, because CO2 needs to go through the water and all eventual particles would stay in it. Hope it makes sense ;)

Yes. But I have very strong surface agitation to keep the tank well oxygenated and keep the fish safe.

To increase speed you can use more yeast. It will work faster. 2 bottles will complicate things and it might be difficult to keep the pressure in check. Just be carefull ;)

It's instant yeast. To be more specific Dr. Oetker :)

I would say that it strongly depends on the number of plants rather than tank capacity. For 10 gal I used 10g of yeast, but I had many fast growing plants inside. It's all about balance. Start small to be safe, and if everything will be fine - then you can experiment a bit. Just don't overdo it the first time. Good luck! :)

You have very limited control over the flow. It's possible to install safety valve to decrease the pressure, but not possible to stop or slow it down significantly. I control it through experimenting with the amount of ingredients (yeast, water, sugar). You nees to have right balance. And during the night good aeration. Sounds complicated, but actually it's easy once you do it ;)

@@AquascapingCube i have a control valve now, just finished making the system today and i experimented with different connections. I can adjust the flow by turning the valve sideways and i think at night ill keep it almost shut. The pressure can build up and in the morning release it. Ill try making as you said, baking soda and vinegar, now is the yeast mixture! Running it at 1bps for a 6gal tank.

Where did you get your valve, could you share the link please? 🙏

Hi. Just simple, clean tap water.

Thx

Hi. It might depend on many factors. Sounds like not enough yeast or bad quality yeast. It can also happen in case of temperature change, when it's colder - yeast is much less reactive. And finally - when you were changing the yeast, maybe your system is not as tight as it used to be? It happens during maintenance.

@@AquascapingCube yes all of the above are true friend, 1) the winter has come however the temperature is still 18°c-28°c most of the time as i live in India. 2)yeast package was not air tight and was kept in the freezer I don't know if this made it less reactive. 3) I found a leakage in the system and took care of it the next day but even after fixing the leak the reaction is not as strong. Kindly provide insights on the following points. Thanks alot!

petco or petsmart has assortment pack of fittings with the valve in it. the valve is to relieve pressure if so desired before or if the bottle has to much pressure.

I would use: 1000g water, 400g sugar, 10g yeast for the first time. Then you can adjust based on the results.

@@AquascapingCubethank you so much will that be fine in a 2 litre bottle

You cannot switch it off. I have very strong surface agitation to keep the tank well oxygenated and keep the fish safe. Never had any problems with that.

It's for safety - if you would like to decrease the pressure in the system and slow the production of CO2.

​@@AquascapingCubeso you just open it to atmosphere?

@@raymondburniston8630 Yes, exactly like with alcohol brewing. But you should use it just in case something happens, and you want to stop or slow the reaction.

hey man i loved the video! before i saw your video i had already made my mixture(from MJ aquascaping) so i didnt follow your recipe but i used your exactly same equipment becasue i have those 2 plastic caps. its been 1 day now and i havent got results yet...should I open the bottle and put some more yeast? because i only put 2g in. Also i didnt understand the valve thing. Should it be completly closed????Because right now i have it closed and i dont know if thats the problem @@AquascapingCube

It's just for safety. If you want to quickly decrease the pressure in the bottle, and release some CO2. You do that if there is too much CO2 coming to the tank. But it's optional.

​@@AquascapingCube does it automatically release preassure when too much? Or manually have to release it?

@@azeus_mecha You have to do it manually. But there is very good chance that it will fail before anything else.