Tropical Fish Keeping - Aquarium fish care and resources

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-   -   self sustaining tank? (http://www.tropicalfishkeeping.com/freshwater-tropical-fish/self-sustaining-tank-71988/)

Crocer 06-04-2011 01:25 AM

self sustaining tank?
 
has any one here ever done a self sustaining tank with bigger tanks? what about any of you who live in colder climates such as myself?

Mikaila31 06-04-2011 04:36 AM

You can make a low maintenance tank using something like the walstad method, no tank can be completely self sustaining though.

onefish2fish 06-04-2011 02:07 PM

Quote:

Originally Posted by Mikaila31 (Post 692206)
You can make a low maintenance tank using something like the walstad method, no tank can be completely self sustaining though.

correct. even if you could have a complete cycle which led you to 0 nitrates water changes would have to replenish nutrients that benefit your plants to help them grow in the first place.
a similar result to this occurs in my saltwater tank, which from properly setting up, stocking, feeding and so forth with my tank i do acheive a 0 nitrate reading however water changes and dosing for alk, cal, and mag are still required to replenish the nutrients used by my system.

redchigh 06-04-2011 02:15 PM

In a Walstad tank, and the substrate colonised by blackworms, seeded by cyclops, and lightly stocked (a handful of mosquito fish in a 75G for example) with lots of plants, you could theoretically get maintenance down to once every 6 months, and feeding whenever you feel like it. Of course, you'll have to break down the tank and start over once a year, since the substrate will get depleted quickly.

Hopefully Byron will stop in, since he lives in canada as well and is our resident plant and fish guru.. ;-)
Not sure why cold climates would matter, since we tend to buy things called "heaters" that keep the water close to 78 degrees F or so...

Crocer 06-05-2011 02:35 AM

but won't that melt our igloo's?;-):-P


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