General Hydroponics Hardwater Flora Micro 6 Gallon

Regular Price $179.71

•  Excessive Calcium is the main factor in your decision to use FloraMicro Hardwater. If the total dissolved salts (TDS) in your water supply measure 200 ppm or more, we recommend that you obtain a water analysis to determine Calcium content. If the analysis reveals a Calcium content of more than 70 ppm (mg/liter) then you should use FloraMicro Hardwater instead of regular FloraMicro.

• FloraMicro Hardwater provides plants with proper nutrition when combined with the purified minerals in FloraGro and FloraBloom.

• Adjust the nutrient mix to meet specialized needs for each phase in a plant’s life cycle: seedling, vegetative, transitional, flowering and fruiting.

• Refer to the Basic Applications Table for mixing recommendations. Please measure accurately. Reduce nutrient strength if plants show signs of stress, or if growing in very bright, hot, or dry environments.

SHAKE WELL BEFORE MIXING. Always add FloraMicro Hardwater to fresh water first and sti r well, then add FloraGro and/or FloraBloom.Never combine FloraMicro with FloraGro or FloraBloom in undiluted form; doing so may cause nutrient lockout

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If you have hard water, you can easily adapt Flora Series® by using FloraMicro® Hardwater instead of our standard formula. FloraMicro® Hardwater is part of Flora Series®, the original three-part hydroponic-based nutrient system from General Hydroponics®. By using different combinations of FloraMicro® Hardwater, FloraGro®, and FloraBloom®, you can fulfill each plant’s nutrient needs for every growth stage and environment. This combination, which you’ll modify based on each phase of growth, is optimized to deliver the primary, secondary and micronutrients your plants need for vigorous growth, large flowers, enhanced yields and nutrient-dense crops.

FloraSeries Feed Charts

Additional information

Weight 63.130 lbs
Dimensions 11.500 × 9.500 × 16.500 in


General Hydroponics

At General Hydroponics, growing is at the heart of who we are and everything we do. We live it and breathe it. We’re not just helping along an entire movement of like-minded difference makers, rule breakers, and boundary-pushers — we’re leading it. Since Day 1, we’ve been at the center of a budding global community. One that wears its status as an altogether different breed like a badge of honor. A community built by those who wake up every day with the grit to create something extraordinary — and to do it on their terms. Who knows what it’s like to be told that their ideas are far-fetched. Who defy the voices that demand they be like everyone else. We take inspiration from those who refuse to follow the rules. We believe in the underdogs. The rebels. The nonconformists. Because that’s exactly how we got our start. As industry pioneers with more than 45 years in the game, you could say we’re one of the OGs of hydroponics. We’ve come a long way from our humble origins as a scrappy garage-based startup to becoming the leading name in high-impact growing solutions on a global scale. But the philosophy, development, and innovative spirit at the heart of our products is anything but old school.


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