Iron (DTPA) 100g
Iron (Fe DTPA (9%) is a source of chelated Iron (Fe) essential for chlorophyll production and lignin development for plants grown in both acidic and alkaline waters.
- Instructions per 100L: Add 250 milligrams into 100L tank twice per week with 30-50% weekly water change.
- Advanced users: 234 milligrams into 100L will yield 0.2ppm Fe and maintain a stable pH interval of 3-7.5.
- Store in a cool, dark environment. Keep out of reach of children.
| Specification | Value |
|---|---|
| Iron content (Fe DTPA) | 9% |
| Recommended dosage (per 100L) | 250 mg twice weekly |
| Advanced dosage (per 100L) | 234 mg |
| Resulting iron concentration | 0.2 ppm Fe |
| Stable pH range | 3–7.5 |
| Storage condition | Cool, dark environment |
FAQ
What is the recommended dosage of Iron (DTPA) for a 100L aquarium?
Add 250 milligrams of Iron (DTPA) into 100L of tank twice per week, combined with a 30-50% weekly water change.
Can the dosage be adjusted for different water conditions?
Yes, the dosage may vary depending on plant growth, water parameters, and tank conditions. Advanced users may use 234 mg per 100L to achieve 0.2ppm Fe and stable pH between 3–7.5.
How should Iron (DTPA) be stored?
Store in a cool, dark environment to preserve the chelation and effectiveness of the iron.



Fiona Coleman –
Used this iron supplement in my planted tank for three months. My plants showed better color and growth, especially the red and green varieties. The instructions were clear and the dosage worked well with my weekly water changes. No pH fluctuations observed.
Steven Peake –
I added it twice a week as recommended. My stem plants grew stronger and leaves became more vibrant. The iron didn’t cause any water discoloration or pH shifts. Good value for the results.
Megan Poole –
After switching from a regular iron source, I noticed a significant improvement in plant health. The DTPA form stayed stable even in slightly alkaline water. Easy to measure and consistent performance.