best beginner plants for hard water

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peacock9
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Joined: Sun Jun 05, 2022 5:23 am

best beginner plants for hard water

Post by peacock9 »

I've got hard water with a pH around 8.0 and need some easy plants that won't melt or struggle. What's worked for you guys? My tank is a 20-gallon with moderate lighting and sand substrate.
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luckycharm
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Joined: Wed Jan 11, 2023 9:58 am

Re: best beginner plants for hard water

Post by luckycharm »

Anubias and Java Fern are basically bulletproof in hard water. I've got both in my 30-gallon with similar params, and they're thriving. Just don't bury the rhizomes, or they'll rot. Tie 'em to driftwood or rocks instead.
Astralix
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Joined: Thu Oct 10, 2024 7:38 pm

Re: best beginner plants for hard water

Post by Astralix »

Vallisneria is another solid choice. It grows like crazy in my hard water setup, even with minimal ferts. Just make sure you've got enough root tabs if you're using sand. Mine sends out runners constantly.
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pids
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Re: best beginner plants for hard water

Post by pids »

luckycharm wrote: Tue Apr 22, 2025 7:52 pm Anubias and Java Fern are basically bulletproof in hard water. I've got both in my 30-gallon with similar params, and they're thriving. Just don't bury the rhizomes, or they'll rot. Tie 'em to driftwood or rocks instead.
Yep, second this. My Anubias has survived multiple tank crashes. It's like the cockroach of aquarium plants.
luminai
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Joined: Thu Oct 10, 2024 2:43 pm

Re: best beginner plants for hard water

Post by luminai »

Hornwort floats or plants, doesn't care. Grows fast, sucks up nitrates, and handles hard water like a champ. Just be ready to trim it weekly unless you want a jungle.
duojanae
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Joined: Thu Oct 10, 2024 10:05 pm

Re: best beginner plants for hard water

Post by duojanae »

My water's harder than a calculus exam, and Amazon Swords are doing alright. They're not as fussy as people say if you toss in some root tabs. Mine's got leaves bigger than my hand.
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peacock9
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Joined: Sun Jun 05, 2022 5:23 am

Re: best beginner plants for hard water

Post by peacock9 »

Thanks for the suggestions. Gonna start with Anubias and Hornwort since they sound low-maintenance. Appreciate the help!
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pioneer
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Joined: Wed Oct 09, 2024 11:01 pm

Re: best beginner plants for hard water

Post by pioneer »

I tried Cryptocoryne Wendtii in my hard water tank, and it's been growing slow but steady. Not as fast as others mentioned here, but it hasn't died either.
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pauline
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Joined: Thu Oct 10, 2024 4:12 am

Re: best beginner plants for hard water

Post by pauline »

What about floating plants? Duckweed grows everywhere, but it's kinda messy. Frogbit might be a better option if you want something cleaner.
Astralix
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Joined: Thu Oct 10, 2024 7:38 pm

Re: best beginner plants for hard water

Post by Astralix »

pauline wrote: Wed Apr 23, 2025 3:49 am What about floating plants? Duckweed grows everywhere, but it's kinda messy. Frogbit might be a better option if you want something cleaner.
Frogbit's roots are great for fry cover, but it does block light. If you're cool with that, it's a solid pick.
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