Thought it may be worth a mention.

If you are using "bottled CO2" You can also use



Yes, carbon dioxide fire extinguishers. You can get them on ebay for ?5 - ?15 second hand. (I suggest you don't pay more than ?15 for one)

If you were wondering why one is black the other is red, they are both "The same" (2kg) except for age. Since 1997 all fire extinguishers have to be red, so if some one is telling you theirs is new and its black, its at least 14 years old.

... but they will need to be refilled with "food grade" CO2. Industrial grade CO2 that they use for fire extinguishing is not as refined and can contain small quantities of toxic materials.

Eagle C is right. I had this argument elsewhere and somebody filled theirs with industrial grade CO2 and all his lovely Discus died. So beware when refilling.

Quote:

I have read about several people who have used them with no problems, which is why I thought I would mention it.

I must admit, at the time of posting I did not see Jaguar's post.

However, I have found some one else who has done it, showing a step by step guide.

See HERE

I also found THIS

ANOTHER ONE

I did actually find quite a few, none have mentioned any problems when using fire extinguishers for the CO2.

One did mention "food grade" but then said it does not matter but all were insistent about using a regulator.

I guess this one could be debated till the cows come home.

I use fire extinguishers on my tank and get them filled at the local fire extinguisher dealer and ive had NO fish deaths just great plant growth