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I recently got Rotala HRA submerged, and i notice everyday some stems become black and break, but some keep growing.

Tank is new 154 liters, Total water volume approx 105 liters

API test kits

Aquarium water
KH 0
GH 2-3
No3 15-20

Tap water
KH 3
GH 3
No3 5

Dosing 2ml Tropica Premium 5days a week

5 drops reeflowers (for planted tank) potassium

2ml flourish excel daily

Co2 2.3 bps


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Here is a closeup. Its been a week since i added.


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If the stem becomes damaged to the point that vascular tissue is disconnected from the apical portion of the plant, I could see the lower portion dying off. Maybe you damaged the stem in some way while planting it. The stems in the picture look fine to me.
 

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Discussion Starter · #4 ·
If the stem becomes damaged to the point that vascular tissue is disconnected from the apical portion of the plant, I could see the lower portion dying off. Maybe you damaged the stem in some way while planting it. The stems in the picture look fine to me.
The joints turning black and breaking, but many are still growing. Does it also happen due acclimation in new tank?


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Discussion Starter · #6 ·
OH the "joints" are where you cut the plant previously. When you trim the stem, it will die off down to the closest leaf node where it sent growth. Yes, this is normal.
Growing well, but i feel these are not HRA, coz im using really high lighting, my blyxa are turning orange red, but rotala look more orange/pink.

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