Npk 20-20-20

[benleeph]

I looked up for fleet enema and found out that it is Sodium biphosphate and sodium phosphate. Would that be introducing lots of sodium into the tank?

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[Biollante]

Hi,

Yes, I meant be careful with how much trace you use due to the copper, especially if you keep invertebrates.

For most plants, extra iron is helpful, and since you are limited for the trace you can use.

The type of chelate makes a difference but as long as it is chelated it will be okay.

“Fleet” is the brand name (manufactured by CB Fleet), United Italian is the distributer and DeWitt is the marketer, it should be available in drug stores, unfortunately, I have not been in Malaysia since the 1990’s, but I seem to recall such things were available in the big supermarkets.

Biollante

[Biollante]

Hi,

Opps, missed a post……

It does add some sodium, but not much in the quantities we use.

Biollante

[benleeph]

I know United Italian. My friend was working inside before. Ok, will use the fleet enema. And get the extra iron. And try to find the other salt. Any side effect of overdosing iron?

What is dosing procedure for fleet enema?

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[benleeph]

I recall now. I took fleet enema before to empty my bowel before going for colonoscopy.

How will my fishes react to that? I wonder.

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[Biollante]

Hi,

In 100-liters of water a milliliter of Fleet Enemas adds about

• 1.65-ppm phosphate (PO₄) and about
• 0.5-ppm sodium (Na).

{Note: I am aware there are popular calculators that return a lower value for phosphate from Fleet Enema, I suspect it is the difference between dose and total solution, I believe my arithmetic is correct.}

Plants can be overdosed with iron, causing problems with chlorophyll, I think affecting it the plants ability to absorb energy. Most plants are good at controlling iron uptake by producing more or less chelate reductase enzyme.

A good question for Tom Barr.

I have seen iron toxicity in terrestrial plants, a symptom was necrosis, of the leaves, spots appeared on the leaves and really dark green, stunted top growth and root growth.

Biollante

[benleeph]

I got my 25 kg KNO3 today. It was heavy. I did some digging and found out that the NPK 20-20-20 uses urea for it's nitrogen.

I also gotten my fleet enema and iron edta 13.2%. Only cannot find MgSO4 yet. I dosed heavy on iron today....about 1 teaspoon for 90g.

So I dose 1 ml x 3 times a week for my 300l to get 1.65ppm for phosphate. Am I correct?

Will I get enough potassium by just dosing KNO3 alone?

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[benleeph]

Finally....Got my epsom salt from guardian pharmacy.

For my 80-90g.
Dosing 1tsp KNO3 3 times a week.
Dosing 2 tsp MgSO4 3 times a week.
Dosing 3 ml Fleet Enema 3 times a week.
Dosing 1/4 tsp TE Mix 3 times a week.
Dosing 1/4 tsp chelated Fe 13.2% 3 times a week.
Change 30% water once per week.

Is this dosing procedure ok?

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[Biollante]

Hi,

Most agricultural fertilizers use urea, think ammonia, for most, or all of the N, it is cheap.

The 1-ml Fleet, three times a week is good and assuming 300-liters actual water that will be 1.65-ppm.

I would ease up on the iron, that is around 2-ppm.

Dose your ¼ teaspoon TE mix three times a week that gives you about 0.5-ppm iron and dose ⅟₁₆ teaspoon 13% DPTA Fe three times a week, that will give you a total of about 1-ppm iron.

Biollante

[benleeph]

Meaning.....I had been overdosing my phosphate by 3x and iron by more than a big margin.

Ok....will listen to your advice as I am very new in this. Any side effect if I miss my water change as sometimes I will be outstation.

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