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Filtering Fish Solids Vs. Worm Digestion in the System  RSS feed

 
Nick BrownBradford
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Roughly 100 gallon system using either goldfish (a couple hundred) or perch (likely 50 or so). I'm debating whether to let the solids collect in a conversion bed and let worms eat it or to filter it out and then add it back in. What are your thoughts? Thank you in advance.
 
R Scott
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Location: Kansas Zone 6a
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It depends...

Do you want to use the fish fertilizer somewhere else?

 
David Hernick
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Location: Oakland, CA
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I try to filter out as much solids as practical.   There is a lot of information on re-mineralization tanks,  this may be and good intermediate option for you.   At that density it sounds like you have a really good way of oxygenating your system.   Good luck
 
Jeffrey Sullivan
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Location: Michigan
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I use worms in my grow beds as well as a radial filter before the beds to filter out a lot of the solids. The worms do a great job breaking down the solids but they do have castings that will accumulate in your system. I've just set up a second filter to catch the castings as they leave the sump.  Otherwise they'll keep circulating in your system until they find a place to settle. They were building up in my raft bed. Now I have to figure out a way to separate the castings from the filter and use them in my garden. Probably another radial or swirl filter from the sump.
 
Rebecca Norman
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I very little practical experience with keeping fish, but my gut feeling is that a healthy nutrient cycle needs not only animals (fish and worms) but also plants. And if nutrients are added into the system in the form of fish feed or anything, some nutrients might need to be removed from the cycle, for example by irrigating plants that won't go back into the system, or harvesting fish or plant products (or worms) out of it.
 
I agree. Here's the link: http://stoves2.com
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