Seachem Flourish dosing frequency

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crafty
Posts: 5
Joined: Thu Oct 10, 2024 6:31 pm

Seachem Flourish dosing frequency

Post by crafty »

I've been dosing Seachem Flourish in my 20 gallon planted tank twice a week, but my Java Ferns still look kinda sad. Am I doing it wrong, or should I up the dose?
kalexi
Posts: 5
Joined: Thu Oct 10, 2024 4:42 pm

Re: Seachem Flourish dosing frequency

Post by kalexi »

Java Ferns are slow growers, so they don't need heavy dosing. What's your lighting like? Low tech setups usually do better with once a week dosing, maybe bump it to three times if you've got high light. Also, check your nitrates—they might be too low.
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stoney
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Joined: Thu Oct 10, 2024 2:40 am

Re: Seachem Flourish dosing frequency

Post by stoney »

I agree with kalexi. I dose once a week in my low tech 30 gallon, and my Java Ferns are thriving. Are you using root tabs? They help a lot with slow growers.
pyrope
Posts: 8
Joined: Wed Mar 01, 2023 12:36 am

Re: Seachem Flourish dosing frequency

Post by pyrope »

Twice a week seems excessive unless you've got a ton of plants. I'd cut it back to once and see how they respond. Also, what's your water change schedule? Too many nutrients can mess with the balance.
Sitelike
Posts: 2
Joined: Thu Oct 10, 2024 9:19 pm

Re: Seachem Flourish dosing frequency

Post by Sitelike »

Yo, I was dosing like crazy at first too, but my plants were still strugglin'. Turns out I wasn't giving 'em enough light. Fixed that, now once a week Flourish does the trick. Maybe check your light settings?
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breezely
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Joined: Wed Oct 04, 2023 11:21 am

Re: Seachem Flourish dosing frequency

Post by breezely »

I've got a 10 gallon with Java Ferns and Anubias, and I dose Flourish once a week. They're doing great! Maybe your tank just needs time to adjust. Plants can be finicky.
crafty
Posts: 5
Joined: Thu Oct 10, 2024 6:31 pm

Re: Seachem Flourish dosing frequency

Post by crafty »

Thanks for the advice, everyone. I'll try cutting back to once a week and see how it goes. My lighting is pretty basic, just a cheap LED, so maybe that's part of the issue.
kalexi
Posts: 5
Joined: Thu Oct 10, 2024 4:42 pm

Re: Seachem Flourish dosing frequency

Post by kalexi »

crafty wrote: Sun Jun 15, 2025 6:39 am Thanks for the advice, everyone. I'll try cutting back to once a week and see how it goes. My lighting is pretty basic, just a cheap LED, so maybe that's part of the issue.
Yeah, lighting's a big factor. If you're not running CO2, your plants won't use the nutrients as efficiently. A better light might help, but start slow with the changes.
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Cobyx
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Joined: Tue May 31, 2022 3:34 am

Re: Seachem Flourish dosing frequency

Post by Cobyx »

I'm new to this, but my buddy told me to dose Flourish every other week. My plants are chill, but they're not growing fast. Should I dose more?
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Jazzon
Posts: 2
Joined: Thu Oct 10, 2024 2:09 am

Re: Seachem Flourish dosing frequency

Post by Jazzon »

Dosing frequency depends on your setup. If you're not seeing deficiencies, stick with your current schedule. Overdosing can cause algae issues, which are harder to fix than slow growth.
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