How much $$ do you you spend on CO2 in a year?

[hashbaz]

How much $$ do you you spend on CO2 in a year?

I don't have CO2 yet, but hope to sometime. I'm curious as to how much people spend on the CO2 itself.

 

[malkore]

Like, just on refills? a 5lb cylinder lasts 10months on my 75gallon tank, running 24/7. Cost to refill was about $18 including tax & hazzardous material fees.

 

[Steve Hampton]

I supply multiple tanks with CO2 from a 10 lb. CO2 cylinder and refill about every 6-8 months depending on the number of aquariums I'm running at the time. To refill my 10 lb. cylinder cost a few cents less than $19.00 including all fees and tax. For single moderately large aquariums the most it should cost is about $20-$25 per year for CO2. For small aquariums it should be half that amount. Note that the best option IMO is a 10 lb. CO2 cylinder. It costs about the same price to refill yet will last twice as long and the CO2 cylinder height is about the same it's just a "fatter" cylinder. The 20 lb. tank costs only about $4.00 more to refill, but the weight of a 20 lb. filled CO2 tank makes it a bit difficult to transport easily. But obviously, I would spend about half as much per year on CO2 if I had a 20 lb. tank...saving $20.00 per year doesn't IMO make up for the extra weight and handling problems of the 20 pounder though.

 

[malkore]

And I can tell you, I probably spent $20 this last year trying to run some DIY CO2 on several tanks...between sugar and yeast prices.

 

[aquazen]

That does it. I'm getting CO2 tank next time I start up a new tank.

 

[Nystina]

I spend $10 a year to refill a 5lb. tank. I have a med. planted, 50 gal aquarium. CO2 lasts just about the whole year.