Anyone Had Luck with Red Plants?

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DeepVista
Posts: 5
Joined: Sun Aug 20, 2023 7:59 pm

Anyone Had Luck with Red Plants?

Post by DeepVista »

I've been trying to grow some Alternanthera Reineckii in my 20 gallon tank, but the leaves keep turning green. Running a Finnex Planted+ 24/7, dosing Thrive twice a week, and CO2 at 2 bps. Anyone got tips to keep the red vibrant?
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sharpfin12
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Joined: Thu May 12, 2022 4:26 pm

Re: Anyone Had Luck with Red Plants?

Post by sharpfin12 »

Red plants can be tricky. What's your nitrate level? I've found keeping nitrates low, around 5 ppm, helps bring out the red. Also, iron dosing is key. I use Seachem Iron and my Ludwigia Super Red pops.
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zenitora
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Joined: Thu Oct 10, 2024 4:45 am

Re: Anyone Had Luck with Red Plants?

Post by zenitora »

Lighting might be the issue. The 24/7 mode is cool but maybe not intense enough for reds. Try cranking it to 100% for 6 hours. My Rotala H'ra went from pink to fire engine red after I switched.
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lynG
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Joined: Thu Oct 10, 2024 4:02 am

Re: Anyone Had Luck with Red Plants?

Post by lynG »

sharpfin12 wrote: Mon Jun 02, 2025 5:56 pm Red plants can be tricky. What's your nitrate level? I've found keeping nitrates low, around 5 ppm, helps bring out the red. Also, iron dosing is key. I use Seachem Iron and my Ludwigia Super Red pops.
Yep, low nitrates and iron are game changers. I also noticed my reds get brighter when I cut back on phosphates. Maybe try that?
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DeepVista
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Joined: Sun Aug 20, 2023 7:59 pm

Re: Anyone Had Luck with Red Plants?

Post by DeepVista »

Thanks for the tips, everyone. I'll test my nitrates and phosphates tonight and adjust the light schedule. Gonna grab some Seachem Iron too. Appreciate the help!
angelus
Posts: 10
Joined: Wed Oct 23, 2024 10:23 am

Re: Anyone Had Luck with Red Plants?

Post by angelus »

Don't sleep on potassium either. My AR Mini was struggling till I started dosing K. Now it's redder than my cherry shrimp. Also, how old is your light? LEDs lose intensity over time.
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coralix1
Posts: 3
Joined: Sun Dec 24, 2023 5:10 pm

Re: Anyone Had Luck with Red Plants?

Post by coralix1 »

My red plants always die. Idk what I'm doing wrong. Maybe I should just stick to Anubias.
dunesage
Posts: 1
Joined: Thu Oct 10, 2024 8:51 pm

Re: Anyone Had Luck with Red Plants?

Post by dunesage »

Patience is key. Reds often take weeks to adjust and show color. Keep tweaking one thing at a time and don't give up. You'll get there.
limew
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Joined: Thu Oct 10, 2024 9:26 pm

Re: Anyone Had Luck with Red Plants?

Post by limew »

zenitora wrote: Mon Jun 02, 2025 8:10 pm Lighting might be the issue. The 24/7 mode is cool but maybe not intense enough for reds. Try cranking it to 100% for 6 hours. My Rotala H'ra went from pink to fire engine red after I switched.
This. I switched to a 6-hour photoperiod at max intensity and my reds exploded. Also, make sure your CO2 is consistent. Fluctuations can mess with color.
daisie
Posts: 1
Joined: Thu Oct 10, 2024 4:26 pm

Re: Anyone Had Luck with Red Plants?

Post by daisie »

Has anyone tried using tannins to enhance reds? I heard it can help but haven't tested it myself.
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