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[APD] Re: DIY CO2 in terrariums?

At 10:08 AM 6/02/04 -0500, you wrote:
I'm looking at trying to grow marsilea and a small sword in a fish bowl -
the trick is that I don't want much water.  I want to get the both growing

Can you use DIY CO2 and have the tubing just "dumping" CO2 into a covered
fish bowl?  CO2 is heavier than air so it would settle at the bottom and
displace the normal air, right?

Yep. That's pretty much what I'm doing. Most people recommend having the water level initially high and slowly lowering it to allow the plant to develop emersed growth. I'm too impatient for this and usually just whack things into the terrarium and let them struggle through. As a compromise I would have the water level just enough to cover the crown of the sword. It should go to emersed growth easily. Them Marselia should have no particular problems adjusting if they are anything like the Australian species I am familiar with and might actually overwhelm the terrarium. The only thing to watch out for is fungus attack in the early stages of the terrarium. You could sterilise the soil either by boiling it or leaving it in the sun in a black garbage bag for a few days or use nursery type anti-fungus sprays or simply accept you might lose a few plants at first as it doesn't take long to settle down IME, YMMV.

Just wondering if anyone has played with it - or if you have any tips on
moving a baby, submersed sword over to an emersed enviroment.  Thanks.

Tony Eales 333 Whites Rd Lota, Brisbane 4179 Ph (07) 3365 6958 Home (07) 3396 8496

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