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Trapa natans and CO2 tanks
Subject: Re: Trapa natans L.
<snip long interesting article on T. natans>
> Well, you asked Karen ...
Well, thanks, but what I really want to know, is have you (or
anyone else) actually kept it in the aquarium? If so, what were
your experiences.<g>
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Subject: CO2 tanks and fire extinguishers
>
> ok, I'm going to jump into this one.
>
> I've tried it. My fish paid the consequence.
> My initial problem was how to regulate the flow. I decided
> to drill a screw hole throught the upper and lower handle and
> use a screw to slowly tighten them together.
>
> It worked at first but it was not consistant. I'd get my one
> bubble per second but it would stop after a period of time. No
> matter how I'd compensate it would eventually stop. This time,
> I decided to give it more gas in the hopes it would decrease
> to the proper lever. So I turned it on and went to bed. Next mor
> instead of decreased flow, it went the opposite direction. The h
> shooting out massive amounts of CO2 and all my fish were floatin
This sounds like a faulty regulator and/or needle valve rather
than an inherent failing of the tank itself. Just because you use
a fire extinguisher CO2 tank, you _still_ need a regulator and
needle valve.
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Karen Randall
Aquatic Gardeners Assoc.
Boston, MA