Aquarium plants dying

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Fishie boy

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Original poster
Nov 5, 2019
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Hi guys,

I recently started a planted tank, but the plants have now started to die. Im not sure why? They are all slowly turning brown/clear from the bottom up and then disintegrating
Ammonia and nitrites are 0, nitrates are 20
The plants are planted in 2” of Tropica soil and I dose weekly with a liquid fertiliser
Photos of some of the plants are below


IMG_0861.jpegIMG_0862.jpegIMG_0863.jpeg
 

dougall

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Mar 29, 2005
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What light are you using? Over what tank?
 

the loach

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Aug 6, 2018
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I can't really tell from the 1st picture, but are those floating plants?
Check the pH and KH.
 

Fishie boy

AC Members
Original poster
Nov 5, 2019
13
1
3
25
I can't really tell from the 1st picture, but are those floating plants?
Check the pH and KH.
Yeah the first ones are, but I think they might have been damaged by the light. The ph is 6.4, not sure what the KH is
 

the loach

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Aug 6, 2018
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Floating plants are unlikely to be damaged by light unless they physically touch it, but in general you either choose for floating plants or submerged aquatic plants, you can't have both like you do they take away the light and nutrients for the other plants.
 
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dougall

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Mar 29, 2005
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Im using a 7W white and blue LED on a sunrise/sunset timer, with a max intensity of 85%. The tank is a 20l cube
Watts do not really indicate how much light there is, just how much power the light will use to run.

I will say that more light couldn't hurt, so turning it up to full would be an ok thing.

Where possible try to get plants that have been grown submerged, or have been submerged for at least a couple of weeks.

Finally, try to seperate the plants before you plant them.. don't put all stems into the same part of the substrate; make sure there's room for light to get down in there.
 
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