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Seachem Flourish

Physical Product · Aquariums & fishkeeping · 38 mentions · 2 subreddits · discussed in r/PlantedTank, r/Aquariums

Reddit take

Not enough linked mention summaries yet; the source excerpts below are the evidence.

Pros

  • Using aquarium Co-op easy green and occasionally Seachem Flourish.
  • I try to dose once a week with seachem flourish but honestly forget often.
  • I try to dose once a week with seachem flourish.
  • Just Seachem flourish and flourish excel once a week each.
  • I run root tabs & seachem flourish excel, and seachem flourish into my fully planted tank.

Cons

  • Flourish doesn't provide what plants need. It's primarily an iron fertilizer, not a comprehensive one.
  • a few months ago I dosed with Seachem Flourish a couple times a week and BBA began to show up. Since I’ve stopped I’ve not seen any BBA.
  • I recently switched from Seachem Flourish to Thrive All-In-One fertilizer in hopes that it'll help, but I really want to figure out what's going wrong ASAP.
  • Be aware that Flourish is a "trace nutrient" fertilizer ONLY. It does not supply the major nutrients: NPK (nitrogen, phosphorus, and K=potassium). It is meant for use only in combination with other fertilizers that do supply those nutrie...
  • Flourish doesn't supply nitrogen either. Flourish isn't a general purpose fertilizer. The things I suspect your plants are lacking, flourish does not supply. If you dumped the whole bottle of Flourish into your tank, it very well might...

Sentiment

15 positive (39%) · 14 mixed (37%) · 9 negative (24%)

Trust + time weighted score: +10% · raw score 16%

What redditors said (10 of 38)

Using aquarium Co-op easy green and occasionally Seachem Flourish.
positive · u/s****0 · r/PlantedTank · Dec 31, 2025 · open on Reddit ↗
Flourish doesn't provide what plants need. It's primarily an iron fertilizer, not a comprehensive one.
negative · u/R****8 · r/PlantedTank · comment · Dec 24, 2025 · open on Reddit ↗
a few months ago I dosed with Seachem Flourish a couple times a week and BBA began to show up. Since I’ve stopped I’ve not seen any BBA.
negative · u/i****y · r/PlantedTank · Dec 23, 2025 · open on Reddit ↗
I recently switched from Seachem Flourish to Thrive All-In-One fertilizer in hopes that it'll help, but I really want to figure out what's going wrong ASAP.
mixed · u/a****u · r/PlantedTank · Dec 19, 2025 · open on Reddit ↗
I recently switched from Seachem Flourish to Thrive All-In-One fertilizer in hopes that it'll help, but I really want to figure out what's going wrong ASAP.
negative · u/a****u · r/PlantedTank · Dec 19, 2025 · open on Reddit ↗
I try to dose once a week with seachem flourish but honestly forget often.
positive · u/T****9 · r/PlantedTank · comment · Dec 10, 2025 · open on Reddit ↗
I try to dose once a week with seachem flourish.
positive · u/T****9 · r/PlantedTank · comment · Dec 10, 2025 · open on Reddit ↗
Be aware that Flourish is a "trace nutrient" fertilizer ONLY. It does not supply the major nutrients: NPK (nitrogen, phosphorus, and K=potassium). It is meant for use only in combination with other fertilizers that do supply those nutrients.
mixed · u/8****s · r/Aquariums · comment · Dec 3, 2025 · open on Reddit ↗
Just Seachem flourish and flourish excel once a week each.
positive · u/S****f · r/PlantedTank · comment · Nov 27, 2025 · open on Reddit ↗
Flourish doesn't supply nitrogen either. Flourish isn't a general purpose fertilizer. The things I suspect your plants are lacking, flourish does not supply. If you dumped the whole bottle of Flourish into your tank, it very well might kill all your shrimp, but it still wouldn't supply your plants with useful amounts of the "big 3" nutrients (nitrogen/phosphorus/potassium). Flourish is a trace nutrient fertilizer only.
negative · u/8****s · r/PlantedTank · comment · Nov 26, 2025 · open on Reddit ↗

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