Dennerle Co2 Fertilisation System Profi 250 - Advice Needed

[ikongoni]

Dennerle CO2 Fertilisation System Profi 250 - I just bought one of these on Ebay which was about £80 cheaper than getting one through an aquatics shop.

Couple of questions though.

Firstly, does anyone have any experience of it and what did you think of it?

Secondly, does anyone know where I can get a replacement C02 bottle from?

 

[Wolfenrook]

I thought that the profi line (could it perhaps just be the professional set, rather than profi line?)had refillable bottles, and that the comfort line were the ones that used a disposable bottle? If it's refillable you need to find somewhere that does refills (some places will only refill bottles that are branded with the brand that they sell, so you might need to find a Dennerle stockist). If you don't have a bottle for it then odds are any brand of refillable bottle should fit it (including possibly CO2 fire extinguishers).

If it is however a disposable bottle then the dennerle units have a proprietry thread on the units for disposable bottles. In which case you will need to either get a thread adaptor at which point you will be able to use other brands of disposable bottles (including JBL or the welding gass bottles (make sure though if you get these they are CO2 only, and not CO2+argon mix bottles)). If you are UK based then Hobbyfish.net sell the Dennerle disposable bottles.

Ade

 

[Ark]

i have that set you can get refills online from harrogate aquatics for 15.95 its a gr8 set.

the canisters are disposable not refillable

 

[Wolfenrook]

i have that set you can get refills online from harrogate aquatics for 15.95 its a gr8 set.

the canisters are disposable not refillable

Sorry but I pay the equivelent of £5.50 per 500g CO2 (£22 including delivery for a 2kg CO2 fire extinguisher), so really don't think that having to pay £16 for the same thing is great.

I would seriously consider looking to see if you can get an adaptor to use a refillable bottle, or saving up and buying a new regulator that will. In the long run it will save you quite a lot of money on CO2.

Ade

 

[ikongoni]

@Ark - Is this the bottle that you mean?

<a href="http/www.harrogateaquatic.co.uk/store/in...mp;productId=21" target="_blank">http/www.harrogateaquatic.co.uk/store/in...mp;productId=21</a>

If so, how long would it last on a 125L, not heavily planted aquarium?

By the way, this is the system that I bought.

 

[Wolfenrook]

That explains a lot as that isn't a profi. It looks identical to the sets labled as comfort line. The bottle in the other pic you posted should be fine, as to how long it will last that depends on a lot of different things, like your lighting, type of plants you have and how much surface agitation you have. Also it will be used faster as you don't appear to have a solenoid valve, so you are going to be dosing CO2 24/7, so using it twice as fast.

Ade

 

[ikongoni]

@Wolfenrook - This is my aquarium. Its have a Rio 125 and came with the T5 lighting, I have added the reflectors to this.

Plants are:
2x Radican Swords
2x Mayacca Fluviatilis
4x Nymphaea Bulbs
2x Limnophylia Aromatica (to replace the Vallis)
1x Spatterdock tuber

 

[Ark]

@Ark - Is this the bottle that you mean?


<a href="http/www.harrogateaquatic.co.uk/store/in...mp;productId=21" target="_blank">http/www.harrogateaquatic.co.uk/store/in...mp;productId=21</a>

If so, how long would it last on a 125L, not heavily planted aquarium?

By the way, this is the system that I bought.



yes i have that bottle and set, i use it on a 125ltr tank at 2bps it last ~7 months