[APD] Re: Canisters, etc.

[Dan Dixon <dandixon at mac_com>]

Jason Miller at jvision at telus_net wrote:

> When I get up in the morning, before the lights come on, and the sun is
> shining, my canister is silent - I like it :-).  But when the lights come
> on, and the plants start to bubble (about 1hr afterward), the canister
> starts to gurgle w. air.
. . .
> The weird think is, I don't add the CO2 here, I have a separate reactor.
> So I can't figure out why it starts to gurgle.  Could it be the temp.
> change?  Only 2F (75 to 77 throughout the day), so I don't think so.
> What could it be?

It's sucking in millions of tiny oxygen bubbles, which do not dissolve as
readily as CO2. I experience the same thing with a Magnum 350.

Dan Dixon

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