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Discussion Starter · #1 ·
Hi my friends.
Can You please help me identify what is going on with my plant leaves.
Here is a picture:

Tank is 80l, temperature 26C, water parameters are good.
For substrate I am using TetraPlant complete substrate. Once a week I add liquid fert. Sera Florena. Lightning is 2x20W aquaglo and floraglo.
CO2 is injected via airstone from DIY system.

Any ideas? Since I am newbie I hope You will direct me the right way.

Cheers
 

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Is it algae on the leaves or are they physically turning brown?
 

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brown patches like that on green leave mean lack of fertilizers.
get some fertilizer tablets and bury them in your inert gravel,
or use whatever aquatic fertilizer is available in Croatia, but
try to get it into the gravel, not just in your water. the more
water borne fertilizers, the higher the risk of algae.
 

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Yes that is brown algae
If it wipes off and the leaves look healthy underneath dont worry - brown algae is common in new tanks and often goes away on its own.
The top leaves on the plant to the left look a little yellow - are you adding any iron?
Sue
 

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Discussion Starter · #6 ·
Yes that is brown algae
If it wipes off and the leaves look healthy underneath dont worry - brown algae is common in new tanks and often goes away on its own.
The top leaves on the plant to the left look a little yellow - are you adding any iron?
Sue
I add weekly "Sera Florena"; sera GmbH - Autoframe

It contains iron.
 

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That Sera Florena is just a trace element mix. It is not a complete fertilizer. All plants must have nitrates and phosphates to grow, so you need to provide that. You can use potassium nitrate for nitrates and potassium, another needed element, and mono potassium phosphate for phosphate. Some other phosphate compounds and nitrate compounds will also work. You will see a big difference once you start dosing those.
 

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Discussion Starter · #8 ·
So basicaly I will only need to dose these?
I only have 2x20W lightning which makes little bit over 2WpG. Should I actually dose ferts or not?
 
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