What CaFe Mag 1 lb Actually Supplies
The analysis is where this one gets interesting. Calcium sits at 1.75% and magnesium at 1.50%, the magnesium fully water soluble. Iron comes in at 4.00%. That is more than double the calcium, which makes this an iron-led supplement with calcium and magnesium behind it. It is not a like-for-like swap for a standard cal-mag, where calcium is the headline number. It comes from greensand, magnesium, an amino acid complex and colloidal clay, micronized so it goes into solution and through an emitter without settling.
Dosing a Micronized Iron Supplement Week to Week
Rates run in three bands, watered in weekly. Mild is an eighth to a quarter teaspoon per gallon, and strong is a half to one teaspoon. Heavy runs from two teaspoons to a tablespoon. As a top dress it is a half to two teaspoons per cubic foot, every two to four weeks. Start at mild and work up. Iron deficiency shows on new growth first, as yellowing between veins that stay green. If that is not what you are looking at, more iron is not the fix. A 1 lb bag at the mild rate lasts a tent a long time. That is the point of this size. It is the smallest commitment for finding out whether iron is what your plants are short of.
Key Features
- 4.00% iron: More than double the calcium, so iron is the headline rather than an extra.
- 1.75% calcium, 1.50% magnesium: Present and useful, with the magnesium fully water soluble.
- Not a straight cal-mag swap: Calcium is the smaller number here, so read the analysis before switching.
- Amino acid complex and greensand: How the iron is carried, alongside magnesium and colloidal clay.
- Micronized powder: Goes into solution and through emitters instead of settling in the tank.
- Three dose bands: Mild, strong and heavy, watered in weekly as the plant asks for it.
- Top dress option: Half to two teaspoons per cubic foot, every two to four weeks.
- Read the leaf first: Interveinal yellowing on new growth is the iron signal. Anything else is not.
- The small bag: 1 lb is the size for a tent, or for testing before committing to 5 lb.
Technical Specifications
| Specification | Value |
|---|---|
| Brand | Sensational Solutions |
| Part Number | SSCFM1 |
| Product | CaFe Mag |
| Size | 1 lb |
| Type | Micronized calcium, iron and magnesium supplement |
| Calcium (Ca) | 1.75% |
| Magnesium (Mg) | 1.50%, water soluble |
| Iron (Fe) | 4.00% |
| Derived From | Greensand, magnesium, amino acid complex, colloidal clay |
| Form | Micronized powder |
| Solubility | Suspends in solution, emitter and sprayer safe |
| Water-In Rate, Mild | 1/8 to 1/4 tsp per gallon, weekly |
| Water-In Rate, Strong | 1/2 to 1 tsp per gallon, weekly |
| Water-In Rate, Heavy | 2 tsp to 1 tbsp per gallon, weekly |
| Top Dress Rate | 1/2 to 2 tsp per cubic foot, every 2 to 4 weeks |
| Suitable Media | Soil, coco, hydroponics |
| Deficiency Signal | Interveinal yellowing on new growth |
| Other Sizes | 5 lb, 10 lb and 25 lb |