Flourish 100ml
Seachem Flourish 100ml is a liquid micronutrient supplement for planted freshwater aquariums. It is designed…
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Flourish is a liquid micronutrient supplement for planted aquariums that already receive macronutrients from a separate source. Its formula is built around the trace elements plants need, so keepers who dose nitrogen, phosphorus and potassium on their own schedule can add micronutrients without adding a full set of macros to the same bottle.
Why it matters
- Built for combined dosing: the manufacturer states it is intended to be used together with other fertilizers that supply macro- and micronutrients.
- Avoids duplicate micronutrients: the composition is limited to trace elements, which reduces the risk of trace element buildup when macronutrient levels are being raised.
- Measured dosing: the cap holds 5 ml and carries graduation notches at 1 ml intervals, so smaller doses can be measured out without a separate syringe.
- Macronutrient gaps: the manufacturer recommends Flourish Nitrogen, Flourish Phosphorus and Flourish Potassium for correcting macronutrient deficiencies.
Specifications
- Product: Seachem Flourish, 100 ml bottle
- Dose: one cap (5 ml) per 250 l of water, once or twice a week
- Storage after opening: refrigeration recommended but not required
- Total nitrogen (N): 0.07%
- Boron (B): 0.009%
- Chlorine (Cl): 1.15%
- Zinc (Zn): 0.0007%
- Available phosphorus (P2O5): 0.01%
- Cobalt (Co): 0.0004%
- Magnesium (Mg): 0.11%
- Manganese (Mn): 0.0118%
- Copper (Cu): 0.0001%
- Molybdenum (Mo): 0.009%
- Potassium (soluble potassium carbonate): 0.37%
- Sulfur (S): 0.2773%
- Sodium (Na): 0.13%
- Calcium (Ca): 0.14%
- Iron (Fe): 0.32%
- Sources: potassium chloride, calcium chloride, copper sulfate, magnesium chloride, iron gluconate, cobalt sulfate, magnesium sulfate, manganese sulfate, boric acid, sodium molybdate, zinc sulfate, protein hydrolysates
What it works with
Flourish fits planted freshwater tanks in the aquarium plant fertilization category, where it is combined with a separate macronutrient regimen. The dose is calculated per 250 l of water, so the bottle scales from small tanks to larger ones by changing only the number of caps used, and the dosing frequency stays at once or twice weekly.
Technical specification
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Frequently asked questions
It is designed to be used together with other fertilizers that supply macro and micro elements. If your tank has a macronutrient deficiency, the supplier recommends adding Fluorish Nitrogen, Fluorish Phosphorus and Fluorish Potassium.
Use one cap (5 ml) per 250 liters of water, once or twice a week. The notches on the cap mark 1 ml each, so you can measure a smaller amount.
The supplier notes that putting all nutrients into one product can lead to overdosing micronutrients when you try to raise macronutrient levels. This product is meant to avoid that risk when used with other fertilizers.
The supplier recommends refrigerating the bottle after opening, but notes that this is not strictly necessary.
Total nitrogen is 0.07% and available phosphorus (P2O5) is 0.01%, while iron is 0.32% and potassium (soluble potassium carbonate) is 0.37%. Because the nitrogen and phosphorus content is low, the supplier recommends separate Nitrogen and Phosphorus products for macronutrient deficiencies.
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