Backyard Aquaponics
A place to discuss aquaponics

surely at this levels that can't be healthy towards your fishes.. and secondly if u are running your system so high best you save yourself some trouble and do it hydroponically instead.

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Ok here goes nuthin...

Na 34.7 mm mmol/l
K <0.2 mmol/l
Cl 35.0 mmol/l
CO2 < 0.0 mmol/l
Ca 1.46 mmol/l
Phos 0.13 mmol/l

For fun I tested total protein <0.0g/l and albumin 0.9g/l

The albumin may be from the egg white I added although that was a long time ago and probably more due to the sensitivity of the test.

I think to arrive at the measurement in g/l you need to multiply by molecular weight? Or was it Avogadro's number? Oh wow it's been a while, just packing the lab up, will continue tomorrow.

don't worry I am doing chemical engineering.. I'll convert it for u if u like

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More chance of getting the right result if you do it probably

first of all if u are salting your system with table salt (NaCl), stop it immediately because for the results shown it obviously is at an elevated level its actually 759 mg/l Na and 1222mg/l Cl. This is WAY TO HIGH providing that the results are accurate.
K 8 mg/l
Ca 56.94 mg/l
PO4 12.22 mg/l

for this results it seems like u were using a calcium buffer to adjust your ph hence the high levels of calcium. your phosphate are well in range as well. I suggest u start buffering with a potassium base. but before u do any of this. u have to do water changes to remove all that table salt u added into your system. correct me if I'm wrong. or confirm that what I said above is right. we'll continue decisions of corection measures after.

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1 clarification is it Na 34.7 mm mmol/l or is it Na 34.7 mmol/l. in my calculation I assumed it to be the latter.

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Sorry yes its mmol/l and I just ran mg too 1.06 mmol/l

What does 0.5 miliSiemens actually relate to in Aquaponics ? How does this relate to your Potassium level ? and other nutrient levels ?
Just interested my system runs 0.2 milSiemens and i may be have a magnesium deficiency showing in my chillies how would my conductivity meter show this?

The salt is fine I'm not worried about that at all. Looks like I could do with more potassium. Do you know what concentration we should be aiming at for plant growth? Obviously depends on pH, which currently is 6.5 and probably other factors like competitive binding etc, but roughly what do the hydroponics guys use?

Watch "Expansion update 1" on YouTube
https://www.youtube.com/watch?v=MGwVfcM ... ata_player

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this is my system and all de progress I have gained so far.

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using condutivity can never pinpoint your levels of minerals In the system.. but the good thing coductivity tell u is the total dissolved solids. ie soluable minerals within the water body. using trial and error and the process of elimination u can calculate an basic average of nutrients in the system or even now howmuch u may have to supplement.. usually the main deficiency in most ap systems are potassium and iron. normally everything else once the fish feed is of adequate quality it will have enough nutrients to grow your plants. for instance in your spare time look up the mineral content of a head of lettuce. from wat I seen K is arround 750mg while Ca is 120mg. nitrates will be in the form of protein together with phosphate as phospho lipides or rDNA and proteins.
this implies the mineral content within it will dictate howmuch minerals are extracted from the water. nothing more nothing less. simply just that.

im a bit sleepy so nite nite folks.

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Like yr system, love yr singing voice!

colours I will answer u later but still that na content is still a bit out of range. just look at a hydroponic recipe and see Wats theire na level.

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Like yr system, love yr singing voice!