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D-D Complete CO2 Set

Price:  132.99

Aqua points: 132 [read more]
Availability: UK Shipping Only
Dimensions: Total height with regulator & bottle 39cm
Model: RUW001
Manufacturer: D-D

Out of stock







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Buy this item, get a D-D Disposable CO2 Bottle at 10% off



The use of CO2 within a planted aquarium will vastly improve the growth and health of your plants and can also have a positive effect on the stabilisation of pH and KH. If you want a lush planted aquarium where the plants are healthy, grow quickly then pressurised CO2 is an absolute must.

This disposable system is simple to use and contains the following:

    * 500g disposable C02 bottle
    * Twin gauge pin wheel
    * Integrated non return valve
    * Bubble counter/diffuser
    * Solenoid valve

This means you have everything you need to get you going into the world of CO2 and your aquarium plants can now flourish.  However it's important to remember when using pressurised CO2 that you also need more fertilisers. Along with trace elements found in most commercial fertilisers you also need to add macro nutrients which consist of Nitrogen, Phosphorus and Potassium. If you do not add these your plants will suffer and algae quickly takes hold. See our recommended product below regarding fertilisers and invest in these at the same time as this excellent CO2 system.

Date Added: 07/10/2014 by Kim Duffy
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I bought this as my introduction into the CO2 world. I have kept tropical fish for nearly 10 years and have always struggled with keeping my plants healthy. I watch them as fresh healthy speciments slowing wither away. I'm hoping with my new CO2 system that will be a thing of the past. I'm very excited that I've managed to add this to my tank. I've always been put off by CO2 as I found it a little daunting.... pressurised bottles = scary. I was worried about setting this up, especially as the instructions were so bad (manufacturer's fault, not Aquaessentials!) but managed to do it and with a bit of tweaking it is now up and running. I have a few existing plants in my tank and I just want to see if they improve before investing in more plants. It's only been a few days but they definitely look more perky.

Date Added: 11/09/2014 by Paul Wilson
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I was very impressed with the product. Simple to assemble and install into the aquarium. already seeing results after just 1 week. The service from aqua essentials was awesome. the product was ordered on a Sunday night online and delivered Tuesday morning.

Date Added: 19/07/2014 by Phillip Smith
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mixed up review with the bottle with the co2 set what a wally but still a reasonably priced product the bottle that is

Date Added: 13/05/2014 by Trevor Whitlock
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Everything I needed to add CO2 to my tank, plants are growing well. The only complaint I have is that the instructions were not as clear as they might me. The picture of the solenoid and valve unit did not match the one supplied which caused a bit of confusion initially, but once I had figured out what went where it was plain sailing.

Date Added: 08/09/2013 by Simon brook-jones
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Excellent value for money! Although have had to reseal some joints due to leaks (quite normal) I run mine at 3bps and the bottle lasts at least 5 months.

Date Added: 04/08/2013 by Jason Roger
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BBA now gone!! when I realized I needed a co2 system to help me get rid of the BBA in my tank I found this complete system.Its been very effective and the plants have thanked me for it.Its easy for a novice like me to put together too.Make sure you get a Neutro drop checker and the Bromo fluid.

Date Added: 26/06/2013 by Andrew Liddle
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After trying a few of the different pressurised sets. this one seems to be best. Not only go you get a Solenoid but you also get a good dual gauge Regulator. Some assembly required.

Date Added: 08/05/2013 by Reka Burmeister
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The item turned up in its box that contained no instructions at all apart from the very vague ones on the packaging (pretty much at the level of "screw cap in cylinder, turn on gas, enjoy"). Setting up the unit is pretty straight forward but I would have appreciated a bit more guidance about starting up the new system. At first I set it to about 1 bubble/second in my 60 litre tank. Within a few hours some of my fish were looking quite sad at the bottom, lying on their sides, some others decided to stop swimming upside down... Fortunately I got away without any casualties but at this my indicator was still around the blue... The solenoid valve is really cool, the cylinder's quite big so overall a good purchase.

Date Added: 20/02/2013 by Simone Warren
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Keeps my plants (and fish) happy and really easy to set up once you work through the instructions. Excellent value as it includes everything you need to set up a pressurised CO2 ecosystem.

Date Added: 12/02/2013 by Simone Warren
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Great product, excellent fast despatch. Instructions were a bit vague but top quality product nonetheless.

Date Added: 08/02/2013 by Brian Harmer
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As usual with Aqua essentials arrive in record time.The CO2 set is a good bit of kit very well made and works well

Date Added: 11/12/2012 by Mark Armstrong
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Great kit, took around 30 minutes to get set-up, leak tested and installed on my aquarium. I've used aerosol and fermentation Co2 kits in the past but they really do not compare. My aquarium plants now have the Co2 they need and are now visibly producing oxygen which is what I wanted to achieve. Great kit for entering into pressurised Co2, excellent purchase. Oh and a top notch service from Aqua Essentials as always.

Date Added: 20/06/2011 by James Dawkins
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This kit is the best because it comes with a solenoid valve! Allowing a more efficient and effective supply of CO2. Components are all of a robust and high quality. More expensive but this unit will be cheaper to run over a couple of years compared to the other kits on offer.

Date Added: 03/03/2008 by Russell Childs
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Very easy to set up. Quick delivery from Aquaessentials.

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Ask a question about this product
 
Guest
How long does the gas last for?

 
Staff

That all depends on how many bubbles per minute you are running your system for, along with how many hours per day. However if you ran it at 1 bubble per second for 8 hours a day, the bottle should last 5-6 week.


 
Guest
OK - is there anything else I need with this set? I mean does it have everything?

 
Staff

It has everything you need to get you up and running in the world of CO2. The only addition I would recommend is the AE Design Drop Checker and Bromo Blue Solution.


 
Guest
Can you send me a link for it?

 
Staff

Sure

http://www.aquaessentials.co.uk/ae-design-drop-checker-p-1231.html


 
Guest
Nice one!

 
Guest
hi what size of tank can it be used for as i have 250l tank whould this this work in a tank this big or will i need a bigger co2 kit thanks.

 
Staff
It will work fine in a tank your size

 
Guest
how is the c02 regulated is there a timer? as in can i set it to be on for 8 hours then off for 16?

 
Staff
You control it with the solenoid - plug that into a timer and set how long you want it on/off for

 
Guest
Do you stock replacement co2 bottles? And how much are they?

 
Staff
Yes we do - please see the related products tab

 
Guest
Hi, is it possible to change the bottle on this kit to a reusable one, or are the fittings different?

 
Staff

Sadly not. It only uses the DD disposable bottles and there is no adaptor anymore.


 
Guest
Can you explain how you set this kit up?

 
Staff

This kit comes with instruction and a picture diagram which is easy to follow. However, here's the basic process:

Take the dial out of the box and attach it to your regulator in the correct location (see the diagram which comes in the box).

Take the CO2 bottle and attach it to your regulator - do this by twisting the bottle on, being careful not not cross thread the bottle. Screw it on firm but not too tight. The regulator contains a knob and allows you to control the CO2 coming out of the bottle. Also on the reg is a solenoid.

The solenoid turns the CO2 on and off by opening and closing a valve stopping the flow. The major benefit of the solenoid is it stops wastage. The solenoid plugs into a timer which you would have on your light set up so when the lights come on, the solenoid switches on and when the lights go off, so does the solenoid. This way you only use gas when it's needed (i.e. when your lights are on and the plants are photosynthesizing).

Adjacent to the solenoid is a needle valve - this allows you finer control over your CO2 gas. It's for subtle changes that the larger knob cannot control. For example if you want to adjust your bubble rate from 50 bubbles a minute to 60,  you would use the needle valve to control this.

CO2 tubing is connected to the needle valve and then you insert a non return valve- this would stop any water back flowing and damaging your system.

Connected to your non return valve via more CO2 tubing will be your bubble counter - fill this with water. The bubble counter makes it very easy for you to see exactly what the flow rate of your CO2 system is. The more you open up the needle valve, the higher the bubble rate and the more CO2 is released into your aquarium.

The last piece of equipment after the bubble counter is the diffuser. This allows the release of CO2 into the aquarium via small bubbles. The diffuser should be placed near your filter outlet so the bubbles are pushed around the tank. The longer they stay in contact with the water the better. If they shoot straight up to the top of your aquarium, you won't be getting any diffusion. If you are trying to grow foreground plants make sure the CO2 is pushed over the top of your plants. If it's not your plants will struggle because if the CO2 is not getting there you can bet your nutrients aren't either!

Once all this is done, you can open the knob of the regulator. A full turn should allow gas to be released. Your needle valve is probably closed so open that slowly - 90 degrees at a time. Watch your bubble counter as gas will soon start to be released. When the gas comes out you may find the pressure decreased a little which is normal. Over the next 2 hours, monitor the pressure every 10 minutes and eventually it will become stable and you won't need to adjust it again.


 
Guest
What is the thread size on the bottle? Is it 1/8 inch?

 
Staff

approx 9mm


 
Guest
i have seen the fluval 88 kit on a 4foot tank set up in pfk(jeremy gay)surely its not for a tank that size?

 
Staff
Correct. You would get through a bottle in 1-2 days with the fluval set on a 400l tank. This DD set is much more suitable as the bottle in 5 times bigger.

 
Guest
its suitable for 285 Litres - 120cm over 4ft ,please let me know wich of your co2 kits will be the best one ,for that fish tank

 
Staff

It would work on a tank of that size sure. However you would get through bottles pretty quick.

You'd be better off going for one of these regs http://www.aquaessentials.co.uk/easy-aqua-twin-guage-regulatorsolenoid-p-6179.html

then using one of these CO2 sets http://www.aquaessentials.co.uk/easy-aqua-co2-set-free-co2-tubing-large-p-5939.html

and source a pub style CO2 bottle or CO2 fire extinguisher locally. You need to be able to get bottles filled up easily which is why the bottles need to be found locally.


 
Guest
evening guys iv got a 450 litre tank thats 5ft in length can you tell me if this is suitable and if not what would you recomend

 
Staff
This would be too small for your tank - you'll need a separate regulator and solenoid, and a CO2 bottle (buy this locally to where you live as it will need to be about 5kgs for your tank)

 
Guest
Could I use any welding disposable co2 canisters for this

 
Staff

I believe so yes


 
Guest
would this set up be ok for 230 litre tank and on average how long would bottle last daytime use only

 
Staff
It would be fine and a bottle might last 3-4 weeks dependent on flow rate

 
Guest
Is this overkill for a 40l cube tank? Also, I am a little confused about the solenoid. What triggers it - the lighting timer? I am thinking of getting an Aquaray miniLED 400 tile with the Aquaray timer. Would that be suitable to control the solenoid. Thanks!

 
Staff
It's ideal for a 40l tank. The solenoid is plugged into a timer - most use their lights timer with a double adaptor.

 
Guest
Does the bottle have to be upright? I have space for one of these but only if I can lay the bottle on it's side.

 
Staff
Needs to be upright

 
Guest
I have a tank that holds appox 150l,and i am thinking of purchasing one of your D-D co2 outfits, could you please tell me how many bubbles per minutes a tank of this size would reqire. thank you.

 
Staff

I would start at 1 bubble per second and then use a drop checker (sold on our site) to monitor your CO2 levels.


 
Guest
Hello, how long is the CO2 tubing on this? thanks.

 
Staff

About 1.5m


 
Guest
hi can I use fire extinguisher bottles with this.thanks

 
Staff

Sadly not.


 
Guest
Hi, can this kit be used with one of the UP inline diffusers? What is the max operating pressure. Cheers!

 
Staff

I recommend using this set with the diffuser provided or a glass diffuser. I think it may struggle with atomisers.


 
Guest
Do I need to purchase a separate bubble counter and diffuser with this kit? I noticed in the description that it incorporates a counter and diffuser.

 
Staff

Nope!


 
Guest
Hi I purchased the D-D Complete CO2 kit for my 250l tank. Though COs was flowing nicely in my tank, I'm not sure where the needle should be on the 1-6 bar gauge. I set it at 2.5. Can you please let me know if this is right. I had a little mishap with my gas bottle, where I couldn't see one of the gauges one night I turned the gauge (loosened it) so I could see it and then forgot to tighten it again only to find by the time I returned from work all my gas had escaped. Valuble lesson learned. Thankfully I bought two gas bottles when I placed my order so I have a replacement. And now I understand how it works I will set the gauges facing upwards so I can see them both. I just want to know if 2.5 is OK. I assume that the other gauge tells you how much gas you have left. I hope so as this showed 0 and there were no bubbles!!!!

 
Staff

2.5bar is OK - no problems there :)



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