CO2 diffuser which one to choose ?

I am confused between these three types of diffusers? which one is the best for a 10gal tank with DIY CO2 (CItric acid and Bicarbonate).

1. Metallic CO2 diffuser. happy-island-aquarium-glass-co2-diffuser-bubble-air-stone-purge-oxygen-aeration
2. Simple glass/Ceramic diffuser aquarium-glass-plant-co2-diffuser-u-shape-tube-set-for-plant-fertilizer-fish

Or should I follow this method?

 

DIY set ups don't always have the pressure needed to run the diffusers you listed in first post.
I would go the cheap DIY route and see how the set up works out .

 

Or should I follow this method?

Okay, that is pretty ingenious! So, if you try this out, post an update! Also kinda curious how long the filter will maintain integrity.

 

DIY set ups don't always have the pressure needed to run the diffusers you listed in first post.
I would go the cheap DIY route and see how the set up works out .

Right now, I am using a air stone as a CO2 diffuser, which is working just fine.

Well, this bubble counter lasted for 2 days only.

Next project, syringe DIY bubble counter. Pics are taken from the Internet.

 

Next project, syringe DIY bubble counter. Pics are taken from the Internet.

View attachment 647284View attachment 647285

I have a diy co2 system and I've been putting the end of the tubing right next to the fan thing in my little hob filter. It makes a lot of noise, but the bubbles are nice and tiny and my indicator solution is generally a nice green color.

 

I have a diy co2 system and I've been putting the end of the tubing right next to the fan thing in my little hob filter. It makes a lot of noise, but the bubbles are nice and tiny and my indicator solution is generally a nice green color.

any pictures of this setup ?

 

any pictures of this setup ?

Ah shoot, I don't have any with me and I won't get home until saturday... I'll see if I can draw something real quick...

 

Ah shoot, I don't have any with me and I won't get home until saturday... I'll see if I can draw something real quick...

Ok, so I circled the motor where I put the end of the airline tubing(basically there's a little fan there, so when a bubble comes out the fan beats it around and diffuses it into tiny bubbles)

 

Anyone used diy syringe bubble counter with DIY CO2 generator? I have made my version but can't get any CO2 into the tank

I have tried both syringe bubble counter and syringe diffuser, both didn't worked as required. There was leaking of co2 from the Black/needle end of the bubble counter. The plunger/diffusion disc on the diffuser kit kept on moving with Co2 pressure which was around 3PSI as per DIY kit meter. Bubbles were too large too.
For Now, I am sticking with air stone as a diffuser. as shown in the video. Please suggest any good proper diffuser in its place.

Ok, so I circled the motor where I put the end of the airline tubing(basically there's a little fan there, so when a bubble comes out the fan beats it around and diffuses it into tiny bubbles)
View attachment 648681

I do have this filter but my tank has a top cover which won't allow me to install my old HOB filter



rubysword Sorry, it does. Let me try this method.

 

Cool! I'm interested to see how it wprks-mine does pretty well, bit it's a much smaller tank.

 

Cool! I'm interested to see how it wprks-mine does pretty well, bit it's a much smaller tank.

Lost the adjustment valve in the tank, can't find it. It's already 11pm here in Lahore,Pakistan. hoepfully I will find it in next tank cleaning.
What is the size of your tank ?

 

3.5 gallon. I'm using smaller bottles-.5 liter each.

 

Went to LFS and bought this baby. it is really good at chopping/diffusing Co2. It is even cheaper than Co2 diffuser. Smallest power filter which was available.




Here it is in working order.