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You could slow the Co2 injection bubble count to 1 BPS... and monitor the Co2 Drop checker!

Hi What type/make of diffusers are you using? 1.5 bar isn't enough pressure to run some diffusers! hoggie

Best if you reduce the duration and the intensity by 50%.

Yes, attach a non-return check valve below the bubble counter and one on the Co2 tubing after the regulator!

Yes, Co2 gas concentration may well affect fish! You can run 24/7 put you will need to have gas exchange from a filter outlet of some sort, or a small air pump. Best purchase a Co2 drop checker....although this has a lag time for the actual reading.

https://www.ukaps.org/forum/threads/fluval-bio-co2-pro-system.73982/

DIN477 and CGA 320 Ista. Paint or Spray the Fire Extinguisher Cylinder in any colour you like! That's what I do!

Don't think it's the same thread connection as a Fire Extinguisher!

Prefer the Citric acid/Bicarb mix....it produces the reaction straight away and doesn't need certain temperature levels!

Hi @Polly Here is another option....this might be more suited for your needs, this company are well known for making Brine Shrimp Kits! Its not that cheap when you add P/P......You can make purchase Citric Acid/Bicarb in large quantities from Amazon.

The output isn't controllable!

Hi Polly You don't really need Co2 for certain plants species but it helps to bring out the best in all plants! The exhausted mixture can either be a liquid or liquid and crystals depending on the mixture ratios. You get similar liquid remnants in Bio Sets from JBL etc! It doesn't go mouldy as...

CO2 is another form of fertilization in my opinion! You add salts for the benefit of plant health.

Hi @Polly The journals could be of interest. https://www.ukaps.org/forum/threads/eclectic-mini-tank.71808/ https://www.ukaps.org/forum/threads/dennerle-scapers-tank-35-litre-the-red-ring.62166/ I have been using the Citric Acid/Bicarbonate Soda Cylinders for a few years now...not any major...

It could be tricky....to regulate the Co2 into either or both inline diffusers! You could add two cheap needle valves to the two lines.....that might work.

Have you tested for Co2 leaks?

You could add another needle valve leaving the one on the regulator fully open!

Could do.....fluctuating Co2 doesn't help run a stable aquarium! My opinion is too much light....poor maintenance, dirty filters, and poor plant health.

That is the working pressure of the regulator! Could be the Solenoid is faulty?

https://www.ukaps.org/forum/threads/co2-equipment-help.68369/

Hi Will a 5kg Co2 Fire Extinguisher not be about 60/70cm?

They could be blue forever I wouldn't trust the solution as a reference!

As @Zeus. quoted you will need to up the bubble rate to double at least and do this slowly when at home so you can monitor the fish/snails!

No aquarium water is needed!

As per edited post ;)

Those generic Co2 Solutions are not accurate! Do you put aquarium water in the Drop Checker? You need Bromo Blue as below

Half full I usually do! Which solution are you using?

What make drop checker are you using? Can you upload a full tank image? I run 1 bubble per second on a 35 Litre aquarium.....

It is a large-volume aquarium! Probably better to use a Co2 reactor. Do you have livestock in the aquarium?

Hi Are you seeing any Micro bubbles coming out of the outlet?

The smaller the bubbles the better.......options would be to use a Neo/Twinstar or a Dennerle Diffuser! Or an In-line diffuser that attaches to the filter tubing, as Mat H stated.

Some haven't this option to fully dissolve Co2!

Hi Move the Co2 Diffuser underneath the Oase Skimmer!

Purchase a drop checker and read this tutorial below! https://www.ukaps.org/forum/threads/co2-measuring-using-a-drop-checker.60561/

Okay @Franks I have a JBL Reg up and running at the moment! Here are a few images... The first one has no hole beside the connecting point! In the second Image, there is a hole near the front of the regulator! The third Image is where you adjust the working pressure! hoggie

Hi That regulator is not compatible for use with aerosol-type cans! To adjust the working pressure remove the black plastic cover situated on the front of the regulator, and use a Allen Key to move the dial towards 2.5 Bar! The solenoid must be switched on and the needle valve open! hoggie

That regulator in the image above is for disposable cylinders from JBL! hoggie

Hi I actually mean the adapter....you need a 6mm Allen key to tighten it up! hoggie

Have you checked if the adapter is connected properly?

Yes, you can remove the top when the solenoid is in the closed position! You can also turn the needle valve off for added piece of mind. hoggie

Hi Just stick to a Green Drop Checker, you are in Danger Of Gassing your fish! You can grow plants fine with the above coloured checker. As Tigertim stated, lighting and fertilizers will increase growth.

Add some boiling water to the cylinder to soften up the depleted Citric Acid/Bic Soda mixture. Do this in the sink and leave it for a while, the body of the cylinder will get very hot so be careful. Use a long dowel....to break it up! hoggie

I don't have fish/shrimp.....just lots of plants!

See edited comment!

Not small then! Maybe someone who has a similar size aquarium can give you some reasonable guidelines on the bubble rate! I have a 35 litre and I have a bubble rate of 2 to 3 per second....24/7 yours would approximately be 3 times that.

What litre size is the aquarium.....I only have smaller aquariums therefore cant really comment what would be a reasonable bubble rate per second!

You could try moving the in-line diffuser onto the inlet tubing side of the filter! This might reduce the misting look!

Is this check valve in the correct direction?

Hi Upload a full image of the Co2 Regulator and its components!

No worries, let us know how you got on with the monitoring!

I would just keep a eye on the Drop Checker in the aquarium over the next few days!

Could the bubble counter be faulty? Decrease the needle valve....see what happens.

Yes that would be for in tank diffusers like Neo/Glass type!

Hi If your running a in-line diffuser best if the working pressure is set about 3 bar!

Hi Welcome to the UKaps! How long is the Co2 running before lights come on? If your Drop Checker is Green I would be happy with that, as you have inhabitants going for that 1 point drop could stress the fish. hoggie

You have a leak somewhere....check the tubing connections! https://www.ukaps.org/forum/threads/co2-equipment-help.68369/ hoggie

Needs to be re-charged now, when at the yellow marker! Tip for you..... add some boiling water to the cylinder to soften up the depleted Citric Acid/Bic Soda mixture. Do this in the sink and leave it for a while, the body of the cylinder will get very hot so be careful. hoggie

Hi Yes indeed Co2 will improve any planted aquarium!! Couple points....air line is not suitable for Co2 injection, purchase a Co2 Drop Checker.

I would replace the bubble counter! Some of these Bubble counters can come apart?

Bonnymans sell it but you may have to pay a special premium for delivery nowadays! https://www.bonnymans.co.uk/product-page/glutaraldehyde-50-solution

https://www.ukaps.org/forum/threads/co2-measurement-using-a-drop-checker.467/ The first image shows a good target color for the checker, lime green. The second image shows an example of what it looks like when there is too much CO2: Too much below!

You will need an adapter to attach to the JBL regulator! hoggie

I would just wait until the pointer on the dial gets in the middle of the green zone! Then open the needle valve.

Yes, about 4 inches before the in line diffuser!

Yes, its finding one that's suitable!

Hi Robert I dont think its possible....as they are two different connections onto the cylinder!

Hi Not really, George Farmer does a video on setting up a Co2 system and regulator using a fire extinguisher! Most members on here use them with no issues. hoggie

Hi Have you sprayed around the actually Diffuser its self with gas leak? hoggie

Hi Just stick with the in-tank diffuser for this Co2 Set-up! Trying to install and run a In Line Diffuser will cause you all sorts of problems when your mix starts getting exhausted! hoggie

This or this hoggie

My mistake thought it was a JBL in line diffuser! :meh:

Dear Members When asking for assistance. Please give as much information on your Co2 set-ups, as possible. The regulator is attached to the cylinder if possible and switched on. Clear images or Videos if possible! The regulator make/type. The diffuser type. Cheers hoggie

No worries! Were here to help when possible. Cheers!

Good stuff! If you add a check valve just before the in-line diffuser this will help stop water running into the Co2 tubing plus it helps to keep the pressure up in the in-line diffuser!

Switch on the solenoid when adjusting!

That needs about 2.5 bar minimum increase to 45 ppi.

30 ppi = about 2 bar! What diffuser are you using?

Yes, use diluted washing up liquid! What diffuser are you using? Does the working pressure dial move? What you could try is, increase the working pressure to 3 bar! Then open the needle valve till you have a good stream of bubbles in the counter then reduce to the required bubble rate! hoggie

Have you checked for leaks....use some soapy water bubbles around all connections!

Hi The JBL probably needs about 2 bar of constant pressure! As its a Citric Acid Mix this wont be stable enough as its in a reaction with the Bicarbonate of Soda! Plus the pressure will fall off as the reaction lessens.

Hi Rasmus Have a look at this Tutorial below! https://www.ukaps.org/forum/threads/co2-measurement-using-a-drop-checker.467/ hoggie

Hi Thanks for the input guys! Ive ordered some Co2 Art hose....then I will add a small piece of silicone for the acrylic/glass diffusers! I didn't want to do this....as I wanted one continuous piece of soft flex hose but couldn't source grey in the ADA set, so beggars cant be choosers...

Hi John I don't think the black tubing is soft flex but the clear set probably is! ADA do this set in grey which I would prefer. Cheers!

Cheers Got a link Konrad!

I purchased a length of Dennerle Crystal Line CO2 Hose Black , in September. I thought this would be similar too the green soft flex stuff. Nope stiff.....:( Tried using it keeps splitting on the nipple of the bubble counter.....must be old stock! :mad: Can anyone recommend some Co2 soft flex...

Looks Green to me! hoggie

Hi Where does it come out? The regulator needs have a good seal onto the fire extinguisher! Can you upload an Image of the set-up!

Hi You don't put water inside the diffuser! That diffuser was probably on a timer and had been switched off..... and water has seeped into the chamber! Best if you soak the new diffuser in water for a few hours this will help to let the Co2 out!

Used one in this journal....you can always keep it as a backup if you run out of Fire extinguisher/cylinder Co2! https://www.ukaps.org/forum/threads/dennerle-scapers-tank-35-litre-the-red-ring.62166/#smileyfood1 hoggie

Hi You mean the Bubble Counter! Drop Checker goes in the aquarium to monitor Co2 levels;) Those plastic check valves are not much good...they tend to fail. Try moving the Check Valve just above the Bubble counter for the time being. Purchase a couple of better quality valves like below. hoggie

JBL Bio Co2 set! https://www.aquasabi.com/JBL-ProFlora-Bio-80 hoggie

Yes!

Hi You don't say what size the cylinders you have used up? If the working pressure needle is pulsating or moving slightly up and down you have a leak in the Co2 tubing line.

Yes, I used to run my JBL regulators at 2.25 bar! hoggie

Need a U bend! Available in glass also. https://www.ebay.co.uk/itm/Aquarium-Tank-CO2-Diffuser-Stainless-Steel-U-Shaped-Tube-Pipe-Bend-Connector-UK/383783865517?hash=item595b4d0cad:g:A~oAAOSwYX9fmQTP hoggie

Weird!.....:(

Did you open the valve fully when attached to the regulator?

Strange! The valve might be faulty.