Low Pressure or High Pressure for CO2 tank?

[Marnol D]

Hello,

I was wondering what type of aluminum tank I would need to use for my CO2 setup. The store closest to me sales a low pressure and a high pressure 20lb CO2 tank. I was wondering if it matters if its high pressure or low pressure and if I should aim for a smaller CO2 tank?

 

Thank you!

[Jack.of.all.aquariums]

I have never heard of them being referred to as high or low pressure there doesn't seem to be much info about the difference online either.

I would talk to someone at the store and ask what their applications are. Whatever would be used by a home brewer or welder is what you would want.

I use a 20lb tank for my 125 gallon aquarium.  Most people use 5lb tanks because there are more places that will swap/fill them. I've had to wait a few days on multiple occasions for places to get 20lb tanks in to swap. The size really only affects how long you can go between swaps/fill ups. Larger tanks are cheaper per lb to swap/fill but they often don't fit under aquarium stands so it can be unsightly for some. 

[MickS77]

17 hours ago, Jack.of.all.aquariums said:

they often don't fit under aquarium stands so it can be unsightly for some. 

I built this stand for my 20lb  CO2 tank to conceal it and prevent it from tipping over. 

[Andy's Fish Den]

1 hour ago, MickS77 said:

I built this stand for my 20lb  CO2 tank to conceal it and prevent it from tipping over. 

Good idea, definitely don't want it tipping over, although most co2 tanks have that protective guard by the valve like yours does there. 

[MickS77]

37 minutes ago, Andy's Fish Den said:

Good idea, definitely don't want it tipping over, although most co2 tanks have that protective guard by the valve like yours does there. 

I was more concerned about the regulator and tubing getting broke, rip off, etc. if it went down. 

[Andy's Fish Den]

17 minutes ago, MickS77 said:

I was more concerned about the regulator and tubing getting broke, rip off, etc. if it went down. 

Yes that too. It's a smart idea for anyone who's using CO2 to secure the tank so it cant tip over.