I have been using 600 g disposable CO2 cylinders to provide CO2 gas to the Fireplace Aquarium and that has been pretty good. One cylinder lasts two or three months and they are a reasonably unobtrusive size. Recently though I have been going big. Welder’s Warehouse has a two extra-large cylinders combo deal. Each cylinder […]
Read more →Tag: CO2 Regulators and Flow Control
The pressure inside any liquid CO2 tank is around 860 psi so the gas coming out of the tank needs to be controlled by a regulator to get the pressure down sufficiently that the gas comes out at a usable flow rate. MIG welding regulators reduce the pressure resulting in an adjustable flow rate in […]
Read more →I ran out of CO2 gas today for the Fireplace Aquarium and swapped out the old CO2 supply cylinder for a new one. I get 600 g CO2 at a time in disposable cylinders used for MIG welding, and sure enough, the empty cylinder weighed 1200 g and the new cylinder weighed 1800 g. End […]
Read more →Powerhead distributes CO2 Today I shifted the location of the CO2 diffuser from the left wall of the tank to behind the moutain and underneath the powerhead. The atomised CO2 gets sucked up directly into the flow and actively pushed around the tank. Previously I had the diffuser on the opposite side of the tank […]
Read more →Managing CO2 flow rate satisfactorily is particularly difficult for smaller aquariums; it’s very easy to have the CO2 come blasting out, but a nice steady well-controlled bubbling takes some work. The usual combination of regulator and needle valve can work, and adding in a secondary flow restrictor between the two can be a big help. […]
Read more →I use disposable CO2 tanks marketed for MIG (metal inert gas) welding that are filled with 600 g of liquid CO2. One of the challenges I’ve faced with injected CO2 gas in the Fireplace Aquarium is getting really precise control over the CO2 flow rate. The problem is that I need the CO2 gas flow rate […]
Read more →It’s challenging with a small tank getting the CO2 flow to be both low and stable. I use 600g disposable CO2 cylinders with a single stage regulator that is ok, but not very useful for fine control. There are several downstream valves that further reduce the gas flow. The CO2 over the last month or […]
Read more →Injecting CO2 gas into an aquarium with a diffuser supports plant growth A CO2 diffuser is a device you push CO2 gas through that breaks the gas into microfine bubbles so the CO2 can more easily dissolve into the water (forming carbonic acid). I use a ceramic/acrylic/glass one from AquaRio and it does a nice […]
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