Self contained enviroment? - Page 3 - Tropical Fish Keeping - Aquarium fish care and resources
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post #21 of 22 Old 08-31-2009, 07:58 PM Thread Starter
Ive actually created a mini biosphere kinda thing in one of my bio classes. It was a large glass jar, 1 earthworm, grass, flower, and 1 plant eating beetle and then it was sealed with plasticwrap. The bottom was gravel covered by soil from outside. The entire setup was taken down in a month, all my critters were still alive. I wondered back then if it would work for the long run but i guess it wouldn't. its a very basic experiment, for some reason done at a college level. Guess my school doesnt have enough budget to do an actual experiment.

I have looked at bisphere 2. It is a very interesting experiement. The system was inbalanced, i beleive, and thats what mainly caused their failure. There wasnt enough light penetration, co2 levels fluctuated too much, caused booms in certain populations, resulting in lower oxygen levels, etc.

The idea i proposed would not be sealed off, ie set amount of oxygen and co2 so taht already is a big dent in the biosphere aspect, or aquasphere. I guess that alone would already create a huge variable for an experiment.

I still wanna try this to a degree, if it doesnt work, i can just switch to a "minimal human interference" tank. Does anyone have fish and plant suggestions that could work in tandem for a balance? ie, a type of fish/shrimp and plant that they are known to consume regualrly for sustinence?

Also, would the introduction of snails help? They do consume rotting food and pass them on as waste thats more readily decomposed by bacteria.
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post #22 of 22 Old 09-08-2009, 02:01 PM Thread Starter
OK, so i started the project. Tank is 5 gallons, i ahve about 1 inch of gravel in the middle and it slopes upwards to abour 1.5-2 inches on the sides. I introduced 6 ghost shrimp, and have 1 hornwort, a ball of java moss, micro sword, and 2 stalks of bamboo. I know this isnt nearly enough plants, but i ran into a budget problem and will shop for more plants in the next week or so. Ive dosed the water withs tability and stress coat. This is day 2 and the water has clouded up a little and theres a film forming on the surface of the tank. I do not ahve a pump or airstone yet so teh water is stagnat. is there something i can do about this or do i need the pump ASAP? Also what kind of flow rate should i be looking for in gph?

Last edited by SinCrisis; 09-08-2009 at 02:08 PM.
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