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Re: [APD] Low O2
Thanks for the comprehensive answer !
1. I add CO2 but the reactor stops during the night
2. My wife likes the bubbles and I don't really care
3. I once thought (eronously) that GBA was helped by spraying to near of the surface;
Now, that the extra bubbling seems to help with GBA too, I will wait further
before changing the spraying bar
Thanks again !
Philippe (who can stop the bubbles when making pictures)
----- Original Message -----
From: "S. Hieber" <shieber at yahoo_com>
To: "aquatic plants digest" <aquatic-plants at actwin_com>
Sent: Friday, January 06, 2006 2:32 PM
Subject: Re: [APD] Low O2
> You don't need to raise a so-called spray bar so that it literally sprays water. The
> rule of thumb is to avoid turbulence but don't avoid flow. Setting the bar so the
> output is just below the surface should be adequate for most situations. If you're not
> adding CO2, the surface turbulence is not a factor, so in that case, you can go ahead
> and spray all you want, although it usually isn't necessary. In fact, a small water
> pump and a spray bar can create tremdously more turbulence than an air pump and
> bubbler-- if turbulence is what you are after.
> Bubbling isn't inherently a worse form of turbulence, just a generally unnecessary
> form and not a very effecient way to move water around.
> Bubbles have long been associated with the visual experience of a aquaria -- not
> because one finds commonly find sendless streams of bubbles wherever one finds fish
> and aquatic plants, but because air pumps and bubblers have been sold to aquarists for
> so many years, whether they have any practical use for them or not.
> Some find the appearance of bubble streams as unnatural and hokey as burping clams and
> treasure chests. Those folks should and certainly can avoid air pumps without harm.
> Some folks find bubble streams attractive and even effective "alpha wave" generators.
> The hobby should be fun; tailor your involvement to suit. If like bubbles, then blow
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