As an Amazon Associate I earn from qualifying purchases. How our links work
General Hydroponics / Hydroponics
General Hydroponics CALiMAGic 1-0-0, 1 US Quart
CALiMAGic is a targeted calcium and magnesium supplement, so its value depends on what the water and base fertilizer already provide. The quart bottle is a manageable size for a small system when there is a documented reason to supplement, such as a feeding program designed around low-mineral water. It should not become an automatic response to every pale leaf or damaged fruit. Start by identifying the plant symptom, checking the root environment, and reading the base nutrient label. This product also carries nitrogen in its 1-0-0 analysis, which matters when comparing it with other products loosely described as Cal-Mag. A grower changing brands should compare the actual labels instead of transferring a remembered spoonful. For purchasing, the specific US quart package is HGC733525; that identity helps avoid accidentally comparing a gallon, case, or differently labeled regional bottle. Choose it when your nutrient plan shows a calcium or magnesium gap and you can account for the addition in the complete solution. If the plan already supplies enough, keeping the extra bottle out of the routine makes records and diagnosis simpler.
Research-based guidance, not hands-on testing. Our method.
Source record researched 2026-09-14. Specifications can change; confirm the exact variant before buying.
Tradeoffs & verification notes
A supplement rather than a complete hydroponic base fertilizer.
Adds nitrogen as well as calcium and magnesium; account for the whole formula.
Plant symptoms alone do not establish that adding calcium or magnesium will solve the problem.
Required amount depends on water, crop, medium, and other fertilizers; label rates are not universal prescriptions.
Our research standard
This profile summarizes published product information. It is not a hands-on review, an independent durability test, or a guarantee of performance. We prefer an explicit limitation to an unsupported score.
Use the US FloraSeries quart trio and CALiMAGic to separate base nutrients, supplements, and pH adjusters, then check water, crop, and system compatibility.