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Nutrients
GH Flora Grow/Bloom/Micro Combo
This three-bottle system splits nutrients into Micro, Grow, and Bloom, so you can shift the ratio as plants move through each growth stage instead of using one fixed mix. The gallon size suits larger reservoirs and longer grows.
3-Part Hydroponic Nutrients: How to Mix by Growth Stage
General Hydroponics Flora Grow, Bloom, Micro Combo Fertilizer, 1 gallon each, Pack of 3
- Gh flora series is the original building block nutrient system imitated but never duplicated. Contains complete primary, secondary and micro nutrients for enhanced yields and better crop quality
- Users can adjust mixtures to suit specific plant needs. Enhances flavor, nutrition, aroma and essential oils in both hydroponic and soil cultivated plants
- Contains highly purified concentrates for maximum solubility
MASTERBLEND 4-18-38
This concentrated powder mixes by weight instead of volume, and commercial lettuce growers use it because a small, precise amount, measured in grams per gallon, dissolves into a full batch of solution.
Powdered Hydroponic Fertilizer: How to Mix It by Weight
MASTERBLEND 4-18-38 Complete Combo Kit –
Tomato & Vegetable Fertilizer (1.25 lb)
- MasterBlend 4-18-38 Master Kit (3 Separate Components in correct amounts)
- Contains MasterBlend 4-18-38, Calcium Nitrate 15.5-0-0, and Epsom Salt (Magnesium Sulfate)
- Masterblend Fertilizer is use by professionals worldwide for optimum plant growth
GH CALiMAGic 1-0-0
Reverse osmosis water starts with almost no calcium or magnesium, which is exactly what lettuce needs to avoid tip burn on new leaves. This supplement adds both back before the base nutrients, at about a teaspoon per gallon.
Cal-Mag in Hydroponics: Preventing Tip Burn on Lettuce
General Hydroponics CALiMAGic Quart
- CALiMAGic 1-0-0 is a concentrated blend of readily available calcium and magnesium
- Prevents secondary nutrient deficiencies in fast growing plants
- Helps prevent blossom end rot and tip burn in tomatoes, lettuce, and other calcium intensive plants
PH Up and Down
Tap water can land on either side of the 5.5 to 6.5 range most crops need, so a kit with both Up and Down solutions, plus color test strips, covers corrections either way without buying two separate bottles.
How to adjust pH in hydroponics
Bloom City pH Up & Down Control Kit for Optimal Nutrient Uptake, 8oz | Helps Avoid Nutrient Lockout, For Hydroponic & Soil Grows, Precise pH Control
- Complete pH Control Kit – Includes solutions to raise or lower pH for balanced plant care.
- Supports Proper Nutrient Uptake – Helps maintain optimal pH levels for plant nutrition.
- Precise pH Adjustment – Designed for controlled correction of water and nutrient solutions.