Hi Jon,
One important feature I'd recommend for any bio-container (which you see
done in all the commercially-made ecospheres) is to leave plenty of air
above the waterline. This acts as a buffer zone for gas exchange and
helps prevent excess pressure from building up in there. Leaving at
least 1/5 of the container empty to provide such air space should be a
reasonable amount. The containers I like to use for this hobby are
plastic soda bottles. Cheap, but they do the job. If you want a
container that looks nicer, you could try buying a do-it-yourself glass
snowglobe kit from a store like
http://www.inhermajestysservice.com/snowglobcrea.html

- Logic316

> Posted by: "jsodos" jsodos@... jsodos
> Date: Mon Dec 18, 2006 12:33 pm ((PST))
>
> Hey, I just joined and want to try to start one. Clearly the only way
> I'll learn is to do some experimenting. I think I'm going to start
> from that pdf from the site with the virtual ecosystem. Any
> suggestions would be greatly appreciated. For example, a starter
> "recipe" would be great.
>
> peace
> jon
>
>