self sustain aquarium.

[RTR]

The notorious Ecospheres are an attempt at this, and most seem to end badly, but mine is on its second generation of the Hawaiin red shrimp and still going okay (3-4 years). I was pleasantly shocked at it going so long.

Ponds are not closed systems.

 

[jennypenny]

It isn't impossible just very difficult. Because the water doesn’t get replaced there has to be just the right combo of light, air, flora, and fauna. If something goes wrong i.e. algae bloom, disease or animals that never breed and replenish). It will quickly get out of balance and everything can die off. The same way any ecosystem would.

 

[RTR]

The hobby has been chasing the 'closed sytem' concept for the >50 years I have been part of it. Nothing has ever done any better than the Ecospheres so far as I know. To me that means that this is still an unobtained goal or dream.

 

[rohnds]

True there many example of self sustaining "aquariums" in nature, pond as mention. But except for large aquatic labs (costing anwhere from couple of grand to million dollars), all our aquarium/tank that we have in our hobby are not self-sustaining.

Even if you build a home aquarium with ability to change the water on a timely basis, you are still required to sustain (maintain meaning of) it for many other things.

Rohn

 

[ashdavid]

True there many example of self sustaining "aquariums" in nature, pond as mention. But except for large aquatic labs (costing anwhere from couple of grand to million dollars), all our aquarium/tank that we have in our hobby are not self-sustaining.

Even if you build a home aquarium with ability to change the water on a timely basis, you are still required to sustain (maintain meaning of) it for many other things.

Rohn

I suppose if you take it literaly it would be impossible. And I suppose what I was trying to say was that to a certain extent a self sustainable tank could be possible if you take out a few of the limiting factors.