Hi
No, it's just a statement. Most people (like me) have a hard time finding inexpensive co2 without buying a huge tank and expensive regulators. I found a company that you can get 30 threaded 16g co2 cartridges that will fit a Fluval 20g co2 kit. The company cartridge that comes with the kit are about $10 each (give or take a buck) to replace. I found a company with 16g cartridges that will fit the system for about $1 each. 30 cartridges for 29.99 plus shipping, instead of Fluval replacements which are about $25 for 3 20g cartridges plus shipping.