Is this algae GDA or GSA?

[mrtank50]

Hello guys.

Recently I switched to Plantedbox Lean Dosing fertilizer in the IFC calculator. I started to see only slight algae.

Do you think these are the beginning of GDA or GSA?

Tank information
6 month old tank
Liter : 120
Light: Osram 6*24
Soil: Ada Amazonia 6 months old
Ph:5.86
gh:4-5
kh:0-1

Fertilization:
(Weekly total values)
-Nitrate (NO₃) 5.00 ppm
-Phosphate (PO₄) 2.50 ppm
-Potassium (K) 12.00 ppm
-Magnesium (Mg) 2.00 ppm
-Iron (Fe)
0.25ppm
-Manganese 0.0504 ppm
-Zinc 0.0280 ppm
-Boron 0.0168 ppm
-Copper 0.0028 ppm
-Molybdet 0.0028 ppm
It is in the form of DIY all in one fertilization. I make nitrate from ammonium nitrate and urea.
Iron 0.2 ppm dtpa-0.05 ppm gluconate

Do you think the reason is high in phosphate or low in nitrate?

 

[dw1305]

Hi all,

Do you think the reason is high in phosphate or low in nitrate?

I'd say the plants look pretty healthy.

That ones looks like if might be the start of Black Brush Algae (BBA).

cheers Darrel

 

[mrtank50]

Hi all,

I'd say the plants look pretty healthy.

That ones looks like if might be the start of Black Brush Algae (BBA).

cheers Darrel

dear darrel, thank you for your valuable reply. 3 days ago I was using masterline fertilizer in IFC calculator. He had no such problem. There was only slow growth.
That's why I wanted to try lean dosing. The growth and coloration are wonderful, but such a moss was the beginning. This situation occurred in only 2 days of fertilization.

 

[Happi]

Plantedbox Lean Dosing fertilizer

All-in-One aquarium fertilizer | Plantedbox

All-in-One, the true all-in-one aquarium fertilizer! Contains all important nutrients: nitrate, phosphate, iron, ... Your plants will love it.

planted-box.com

everything was good until i came across with this on their website.

I assume this company is new to fertilizer.

Tank information
6 month old tank
Liter : 120
Light: Osram 6*24
Soil: Ada Amazonia 6 months old
Ph:5.86
gh:4-5
kh:0-1

Fertilization:
(Weekly total values)
-Nitrate (NO₃) 5.00 ppm
-Phosphate (PO₄) 2.50 ppm
-Potassium (K) 12.00 ppm
-Magnesium (Mg) 2.00 ppm
-Iron (Fe)
0.25ppm
-Manganese 0.0504 ppm
-Zinc 0.0280 ppm
-Boron 0.0168 ppm
-Copper 0.0028 ppm
-Molybdet 0.0028 ppm
It is in the form of DIY all in one fertilization. I make nitrate from ammonium nitrate and urea.
Iron 0.2 ppm dtpa-0.05 ppm gluconate

so are you adding additional:
"It is in the form of DIY all in one fertilization. I make nitrate from ammonium nitrate and urea.
Iron 0.2 ppm dtpa-0.05 ppm gluconate"

and are those listed Micros ppm is what that product adds ?

 

[mrtank50]

View attachment 199940

All-in-One aquarium fertilizer | Plantedbox

All-in-One, the true all-in-one aquarium fertilizer! Contains all important nutrients: nitrate, phosphate, iron, ... Your plants will love it.

planted-box.com

everything was good until i came across with this on their website.

View attachment 199941
I assume this company is new to fertilizer.



so are you adding additional:
"It is in the form of DIY all in one fertilization. I make nitrate from ammonium nitrate and urea.
Iron 0.2 ppm dtpa-0.05 ppm gluconate"

and are those listed Micros ppm is what that product adds ?

dear happi, thank you for your valuable reply.

Yes, all the ingredients are exactly the same.

Yesterday I made new fertilizer again.

I played around with the odds a bit and will look again at the result today.

What did I change?
-8 ppm nitrate
Phosphate to -1.5 ppm
-Iron 0.2 ppm (0.15 dtpa-0.05 gluconate)

Also, when I measured it with the photometer iron test, 0.18 ppm iron came out.
Considering that the iron I add daily is 0.036 ppm, it means that there is a 6-day iron accumulation.
So I dropped the iron a bit.

K, MG and micro elements are exactly the same as plantex plain box contents.

I also increased the Co2 a little bit.

Today evening we will look at what changes are happening in plants.

 

[Happi]

Also, when I measured it with the photometer iron test, 0.18 ppm iron came out.
Considering that the iron I add daily is 0.036 ppm, it means that there is a 6-day iron accumulation.
So I dropped the iron a bit

Are you saying there was hardly any uptake of Iron. Some of us tested something similar few years back and we concluded that the uptake of Iron was very little, less than 0.05 ppm weekly. I set the Max at 0.1 ppm from DTPA far as weekly recommended dose. I would love to talk more about this topic since you have a photometer. Can you test the Fe Gluconate and Fe DTPA in their own solution and add it to your tank and see how they behave and measure the reading? I believe you will see very little uptake from DTPA Fe while the Fe gluconate might read 0 farily quickly.

Anyway, have you thought about getting your salts or chemicals to make your own Micros at home?

EDIT: forgot to as if this photometer is designed to pickup both Fe (II) and Fe (III)

 

[Gorillastomp]

forgot to as if this photometer is designed to pickup both Fe (II) and Fe (III)

Usually its fe 2+

The solution will degrade fe3 to fe2 so it can react to make an orage color then read from that color intensity. So to answer your question i guess its both.

 

[mrtank50]

Are you saying there was hardly any uptake of Iron. Some of us tested something similar few years back and we concluded that the uptake of Iron was very little, less than 0.05 ppm weekly. I set the Max at 0.1 ppm from DTPA far as weekly recommended dose. I would love to talk more about this topic since you have a photometer. Can you test the Fe Gluconate and Fe DTPA in their own solution and add it to your tank and see how they behave and measure the reading? I believe you will see very little uptake from DTPA Fe while the Fe gluconate might read 0 farily quickly.

Anyway, have you thought about getting your salts or chemicals to make your own Micros at home?

EDIT: forgot to as if this photometer is designed to pickup both Fe (II) and Fe (III)

dear happy
Actually, I don't have iron deficiency.
My plants are very healthy on iron fertilizer.
I think it was iron buildup.

But I will add and measure gluconate and dtpa separately in a few days. I'll measure again in 8 hours and let you know how much it's reduced.

my test kit

Milwaukee MW14
Measurement Range: 0.00-5.00 ppm

I make all fertilizers NPK and micro myself.
Then I mix it.
I am getting very good results from All in One.



Today I put the fertilizer I just made into the aquarium. There was no increase in GSA. The pandanal looked a little redder.

It will be clearer tomorrow.
The new fertilizer values are available in the picture.