[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: self-contained eco-system
> From: IDMiamiBob <IDMiamiBob at aol_com>
> The small red shrimp I have seen in these spheres are just brine shrimp. Th
> will live only a few weeks and lay only a few eggs.
Humm. I've seen ads in adult toy catalogs with photos of a
self-contained eco-system in glass spheres which contain bright
red shrimp that are 2-3x larger than brine shrimp.
> With any attempt you make at this, the balance in a sealed container system
> will find its own balance between the photosynthetic producer and the animal
> living off it. The trick is to figure out what species to use, and then
> introduce only those two species.
Don't forget light.
I once struck a balance between "sea monkeys", green hair algea
and light from a West facing window above the kitchen sink at my
parents house. My mother enjoyed watching this self-contained
(albeit not air-tight) eco-system for a two or three years
after I left home. She kept it going for at least four years
with nothing more than water top offs every 2-3 months.
Alas, the, ah, ~ 16 oz tank crashed when she moved it to
different West facing window that was only three blocks away!!
To my amusement, she was very bummed--I hadn't realized she
became attached to her tiny brine shrimp "tank".
> From: Olga Betts <sae at arts_ubc.ca>
> Am I wrong in thinking that this would be impossible. Surely the sphere
> could not be completely enclosed. The living things would need air.
The idea is the algea, er, plants (=:) give off O2 eh.