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Nutrient deficiency Help required!

Donovan

Member
Joined
19 Oct 2020
Messages
26
Location
India
Hello everyone.
I need a little help in identifying what kind of deficiency these plants are showing.
The tank has 30 ppm nitrates.
Dosing about 2.8 ppm phosphate
16 ppm K
1.5 ppm Mg.
I have soft water with a TDS around 50. I haven't checked the GH/KH of the water yet.
I mix a little borewell water which I know is high in Ca to avoid any Ca deficiencies.
I'm not sure about the concentration of Micros I'm dosing as its not mentioned on the bottle of fert I'm using.
Drop checker is dark Green but however much I increase the Co2 it remains that colour.
Water change about 45% per week.
It's a high light setup with alot of plants.
I'm using Tropica Aquasoil.
If someone would be kind enough to help me out cause I'm really struggling to figure this out.
 

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dw1305

Expert
UKAPS Team
Joined
7 Apr 2008
Messages
11,962
Location
nr Bath
Hi all,
It looks like an iron (Fe) deficiency. Have a look at @Keys_Tanks <"Why are my plants....."> thread.
I have soft water with a TDS around 50. I haven't checked the GH/KH of the water yet.
I mix a little borewell water which I know is high in Ca to avoid any Ca deficiencies.
All Toninas requires KH 1/3, GH max 7 also co2 minimum 30 ppm
Because of the plants you have (Tonina fluviatilis etc.) just don't add any borehole water for the next few water changes. Plants need little calcium (Ca) and it can interfere with the uptake of magnesium (Mg) and iron (Fe). The bicarbonate ion (HCO3-) will also tend to cause iron to precipitate out as iron carbonate and pH above pH7 allows the formation of <"insoluble iron hydroxide">.
I'm not sure about the concentration of Micros I'm dosing as its not mentioned on the bottle of fert I'm using.
Dose the iron separately, once you've reduced the amount of Ca++ and HCO3- ions in the water FeEDTA should do as a chelator.

cheers Darrel
 
Last edited:

Donovan

Member
Thread starter
Joined
19 Oct 2020
Messages
26
Location
India
Hello Darrel.
Thankyou for the swift reply.
I will do a water change tomorrow and I wont add any borewell water henceforth.
Also I have Dtpa and Eddha which I mix. I just got these powders and I will start dosing them on a regular basis.
Thankyou for you're reply.

Regards
Donovan
 

Donovan

Member
Thread starter
Joined
19 Oct 2020
Messages
26
Location
India
Hello Darrel,
Thankyou for the reply.
I will update you in a while with how the plants look.
Thankyou again.
Regards
Donovan
 

rusticdr

Member
Joined
15 Aug 2016
Messages
114
Location
India
Hi Donovan.. I too am from India.. coimbatore in tamil nadu. Where r u from? How r ur plants doing now? Can u post some pics? Cheers and thanks.

Sent from my SM-G973F using Tapatalk
 

Donovan

Member
Thread starter
Joined
19 Oct 2020
Messages
26
Location
India
Hello,
It will take some time for the plants to show some improvement.
The new leaves have just sprouted and are looking slightly better.
Will post a few pics once they have grown a little.
I'm from Mumbai btw.
Regards
Donovan
 

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