[malANDmatt]

Just trying to get an idea of what systems would be sufficient for a 10 and a 40. I have high light in the 10 and medium in the 40. I need affordabilty and something easy for a newbie. I'm not interested in building my own regulator. What diffusers do you prefer? Just curious and would love input. Thanks!

 

[harrynolan27]

I've only had experience with one co2 system so that's all I can really suggest. I have a complete kit from co2art, it comes with almost everything necessary to get started. I bought a 24oz paintball cylinder and a co2art advanced adapter along with the kit. Its been running on my 5.5 gallon since march now and I've had no problems at all and it was super easy to set up. I want to say it cost me right around $200 total for everything. The kit I got is this one http://www.co2art.co.uk/collections...products/advance-complete-aquarium-co2-system
I'd say something like that would work perfect on your tanks, maybe you would want to get a bigger co2 tank for the 40 gallon though just so you don't have to fill it that often.