DIY Internal CO2 Diffusor

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Posted: Tue Jul 24, 2012 1:28 pm Post subject: DIY Internal CO2 Diffusor

Hi Friends,

I am back with a DIY internal CO2 diffusor.
Inspiration is from Youtube videos.

This is pretty easy to do.
Results are really good as the CO2 is getting fully dissolved in water.
The bubbles coming out are almost invisible in size.
If you have this, you don't need a diffusor and a bubble counter.
Can open the bottom and clean the diffusor if needed.

The drawback is that you need a canister filter or powerhead to do this.

The below images will explain how to make it.

Link

I felt that the QUA bottle I used here is designed for making diffusor !
The white color thing in the left side is the filter floss, which you can buy from LFS.
Then you need some Nylon mosquito net, a pen knife and an Hose to connect to the canister.

Make a fine hole on the cap and fix the hose there.

Cut the bottom part of the bottle and make an opening.
Please note that the cutting is not at sides of the bottle but it is at the bottom.

Make a small hole at the lower side of the bottle for CO2 input

Cut the filter pad at a slightly bigger size that the bottle base.
Cover it with mosquito net at weave it with the thread.

The white pad has to be kept inside the bottle at the bottom through the opening.
Connect the CO2 input.

Added some plastic rings to the diffusor. I picked them from my kid's toy set.
You can use something better to replace these plastic rings. But it be floating material.

See the Youtube Video here

Link

My Other DIYs
Low cost PVC lighting (DIY)
Easy to do Algae Scrubber - using PVC

Posted: Tue Jul 24, 2012 2:10 pm Post subject: Re: DIY Internal CO2 Reactor

My son would have put up a tantrum if I had used is toys.. Chuckle

The DIY is a nice one though..

Posted: Tue Jul 24, 2012 2:22 pm Post subject: Re: DIY Internal CO2 Reactor

cool DIY

Posted: Tue Jul 24, 2012 2:39 pm Post subject: Re: DIY Internal CO2 Reactor

"FROM CANISTER" this means water coming from the canister into the tank right?

Last edited by Sujo on Wed Jul 25, 2012 11:09 am; edited 1 time in total

Thanks Nidhi and Ganesaa.

@garothmaan
Yes.
From Canister means... Water from Canister filter.

Posted: Tue Jul 24, 2012 11:21 pm Post subject: Re: DIY Internal CO2 Reactor

Wonderful DIY Sujo, very innovative idea for a simple DIY Co2 diffuser.

i guess the appropriate heading could be replaced with "CO2 diffuser" not "reactor" . just a suggestion. Smile

Anyway your post, your hard work (to post the pic also and share )and your wonderful idea . Chuckle

, u get to choose the subject.

A good share, will be helpful for many.

Regards
Asif

Hi Asif,

Thanks.
But the idea is not mine.
Got the idea from Youtube.

I still wish to call this as reactor.
Please see the video (now added). Then you will understand this is doing something more than a diffusor.
If this is diffusor, I am curious to know what is co2 reactor. Smile

How will you differentiate diffusor and reactor.

It is really making the CO2 into very fine bubbles and that is why I thought of posting it here.

Regards
Sujo

Hi Garothmaan,

I got the difference now. Smile

Thanks for clarifying this.
In the internet, there are many people who are calling this as reactor.
That is why I got confused.
Now the changes are done in the initial post.

May be there is nothing 'new' here.
Found something in Youtube.
I tried it and found working very well.
So I thought of sharing it here so that some people can save money on buying diffusors. Cool

Also be ready to get troubled with more of my DIYs in future... Grrrr Poke

:whip:

Asif.
Thanks. You are the first person who pointed this.

Posted: Wed Jul 25, 2012 12:38 pm Post subject: Re: DIY Internal CO2 Diffusor

Sometime I realy feel like dumping Mumbai and settling in Bangalore Drinking

Posted: Wed Jul 25, 2012 4:18 pm Post subject: Re: DIY Internal CO2 Diffusor

Hi Sujo,

Good idea...

I have a question on this.... what about the water pressure flowing out of the cannister ... dosent it push out the filter pad out.... and since the reactor is pushing the water down to the bottom, will there be enough water circulation in the tank....

Posted: Wed Jul 25, 2012 4:44 pm Post subject: Re: DIY Internal CO2 Diffusor

I really liked it but again this will take lot of space in aquarium.
The advantage of this design over shellys external co2 reactor is that this may not need a bubble counter.

Posted: Wed Jul 25, 2012 6:26 pm Post subject: Re: DIY Internal CO2 Diffusor

@Jabba
I agree.
Shelly's External reactor is better as it is external.
The only 1 issue I felt is that it is not transparent and we cannot see what is happening inside.
That is why I thought of playing with something transparent.

Keeping this internal diffusor can cause aesthetic issues, especially if your tank is small.
In thickly planted big tanks, this will go unnoticed. Smile

Posted: Wed Jul 25, 2012 9:42 pm Post subject: Re: DIY Internal CO2 Diffusor

Nice one.

Govindsj