What CaFe Mag 25 lb Is and Is Not
The name reads like a cal-mag. Read the analysis before you commit to a commercial bag on that assumption. Iron sits at 4.00%, against 1.75% calcium and 1.50% magnesium. If your rooms are short of calcium, this is not the bag, and a dedicated calcium input is the better answer. If the shortfall is iron, which is what a coco or rockwool room on a climbing reservoir usually hits, this is exactly it. It comes from greensand, magnesium, an amino acid complex and colloidal clay, micronized so it suspends rather than settles.
Handling a Bulk Cal Mag Iron Powder at Volume
Rates do not change with the bag. Mild is an eighth to a quarter teaspoon per gallon, weekly. Strong is a half to one teaspoon, and heavy runs to a tablespoon. A top dress is a half to two teaspoons per cubic foot. At 25 lb, work by weight rather than by spoon. Slurry a weighed batch in warm water before it meets a full tank, or most of it floats. If you dose through a pump, make the stock solution fresh and keep it moving. This is a suspension, not a true solution, so anything that sits will separate. Store the bag sealed and off a damp floor. Powder that cakes will neither suspend nor pass a nozzle.
Key Features
- Iron first, calcium second: 4.00% iron against 1.75% calcium. Not a like-for-like cal-mag swap.
- 1.50% magnesium: Water soluble, sitting alongside the calcium rather than leading.
- Greensand and amino acid complex: The carriers behind the iron, with magnesium and colloidal clay.
- Micronized: Suspends and passes emitters and nozzles instead of dropping out.
- Weigh, do not spoon: At commercial volume a measuring spoon stops being an honest unit.
- Slurry before the tank: A weighed batch into warm water first, or most of it floats on top.
- Keep stock solution moving: It is a suspension, so anything left standing will separate out.
- Same three dose bands: An eighth of a teaspoon a gallon at mild, up to a tablespoon at heavy.
- Store sealed, off the floor: Caked powder will neither suspend nor pass a nozzle.
- Smaller sizes to trial: 1 lb, 5 lb and 10 lb, before committing a room to the big bag.
Technical Specifications
| Specification | Value |
|---|---|
| Brand | Sensational Solutions |
| Part Number | SSCFM4 |
| Product | CaFe Mag |
| Size | 25 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 |
| Application | Water-in, top dress or foliar spray |
| Solubility | Suspension, 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 |
| Mixing | Slurry a weighed batch in warm water before adding to a full tank |
| Dosing Pumps | Make stock solution fresh and keep it agitated |
| Suitable Media | Soil, coco, rockwool, hydroponics |
| Deficiency Signal | Interveinal yellowing on new growth |
| Storage | Sealed and dry, off a damp floor |
| Other Sizes | 1 lb, 5 lb and 10 lb |