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Unless something is using the oxygen in your tank and there is no diffusion of oxygen within the liquid it is impossible to get an anoxic area in the bottom of your water butt.I have a water butt connected to an outflow from my pond that each year gets some escapee tadpoles in it. No aeration but those tadpoles thrive at all levels!Anaerobic zones in tanks and small water bodies are caused when there are lots of rotting debris at the bottom of the container and happen in this debris. Directly above them there will be a good amount of oxygen. Aerating this will stir that up and prevent the anaerobic decay happening but hydrogen sulphide and other things will be released when this is first done and you'd be better cleaning the container!Aeration is an efficient way of moving water but will not force extra oxygen into the water or perform other miracles! Oxygen generators will add extra O2 when on and for a period afterwards but whether that has a benefit to orchids grown in highly aerated media seems to be a matter of opinion.
Unless something is using the oxygen in your tank and there is no diffusion of oxygen within the liquid it is impossible to get an anoxic area in the bottom of your water butt.
I have a water butt connected to an outflow from my pond that each year gets some escapee tadpoles in it. No aeration but those tadpoles thrive at all levels!
Anaerobic zones in tanks and small water bodies are caused when there are lots of rotting debris at the bottom of the container and happen in this debris. Directly above them there will be a good amount of oxygen. Aerating this will stir that up and prevent the anaerobic decay happening but hydrogen sulphide and other things will be released when this is first done and you'd be better cleaning the container!
Aeration is an efficient way of moving water but will not force extra oxygen into the water or perform other miracles! Oxygen generators will add extra O2 when on and for a period afterwards but whether that has a benefit to orchids grown in highly aerated media seems to be a matter of opinion.
