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Chemistry, Math, and Aquaponics Discussions (7)

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Growth Hormon levels

I'm the past when I had fish I would change out the 1/4 of the  water every other week to keep the growth hormone low so the fish would gro…

Started by Kimberly Irene Lewis

2 May 13, 2013
Reply by Kimberly Irene Lewis

Help with chemistry

I recently wrote an article about soil and how the nutrients cycle through micro organisms, and bugs.   I was able to verify most of what I…

Started by Bob Campbell

6 Mar 3, 2013
Reply by Bob Campbell


I have not spent time to learn how to set HydroBuddy up and use it, but my initial impression is that it may be a good tool for adjusting n…

Started by Bob Campbell

1 Jan 5, 2013
Reply by Eric Warwick

urine powered generator from Africa; can it work chemically with something like struvite?

My organic chemistry knowledge is too slim and rusty to tell how or whether this urine powered generator from Africa might be able to be co…

Started by Tom Cooley

6 Dec 5, 2012
Reply by Vlad Jovanovic

Adding Magnesium to Humonia

Eric,  Say one was to want to make struvite ( NH4MgPO4·6H2O) from humonia. If we start with the baseline premise that one litre of human ur…

Started by Vlad Jovanovic

23 Nov 29, 2012
Reply by Vlad Jovanovic

ORP and Media Bed Cleaning

One problem with media beds is that they need to be taken out of service to clean. If a person could identity bed zones that were trending…

Started by Terri Mikkola

4 Oct 2, 2012
Reply by Vlad Jovanovic

Are "aged" media beds soil-based?

Can the term, “soil-less” still be applied to an aged media grow bed where the humus layer becomes a significant source of plant nutrients?…

Started by Terri Mikkola

9 Oct 2, 2012
Reply by Pices


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