FoxFarm Cultivation Nation pH Down - Liquid Nutrient Solution Adjuster for Hydroponic & Soil Gardens, Lowers pH Levels - 40% Citric Acid for Optimal Plant Growth (Quart)
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Availability:
In Stock.
Arrives
Friday, Aug 8
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Size: 1 Quart
Features
- PRECISION pH FOR LUSH GROWTH: Cultivation Nation pH down for plants maintains an appropriate pH range of 5.6 to 6.8. This solution is designed to easily lower the pH of nutrient solutions in any environment, enabling healthier growth for your plants
- CITRIC ACID POWER FOR NUTRIENT GAIN: With 40% citric acid, this organic pH down enhances nutrient uptake, acts as a natural preservative, & supports plant health. Its effective for pH balance & improves nutrient availability without harming plants
- EASY AND INSTANT pH ADJUSTMENT: Shake well, take a pH reading, & add small amounts of pH DOWN fox farm fertilizers. Test after each addition until the desired pH is reached, as this method ensures an easy & effective balance for your nutrient solution
- GROW STRONG IN ANY SETTING: Cultivation nation fox farm pH down is versatile, working in hydroponic systems and soil gardens. Whether youre growing indoors or outdoors, this pH adjuster ensures your plants receive the nutrients they need for optimal growth
- SAFE HANDLING, VISIBLE RESULTS: With 60% inert ingredients, Cultivation pH down hydroponic offers a non-plant food formula that's safe for regular use. Follow instructions for safe handling to achieve the right pH balance and ensure thriving plants
Description
B08KWPB8KR
Brand: FoxFarm
Item Weight: 32 Ounces
Item Form: Liquid
Coverage: Medium
Liquid Volume: 1
Package Dimensions : 11.14 x 4.65 x 4.45 inches; 2 Pounds
Item model number : 5039072
Date First Available : October 8, 2020
Manufacturer : Fox Farm
Best Sellers Rank: #23,645 in Patio, Lawn & Garden (See Top 100 in Patio, Lawn & Garden) #691 in Garden Fertilizers
#691 in Garden Fertilizers:
Customer Reviews: 4.5 4.5 out of 5 stars 402 ratings
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Friday, Aug 8
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Similar Products
Top Amazon Reviews
Size: 1 Quart
Definitely recommend if you have hard water…a little cap full goes a long way. This stuff actually lowers the PH of you water. Seriously half a cap worth treats my 5gals of water with high 7-8ph down to a 6ish ph.
Reviewed in the United States on June 10, 2025 by Joseph michels
Size: 1 Quart
I use this in my hydroponic system everytime I feel it because my ph is super high where I live. It works amazing at dropping it to the perfect ph level. Lasts a long time. And has only impacted my plants in a good way
Reviewed in the United States on May 29, 2025 by Ally surrage Ally surrage
Size: 1 Quart
Only need a tiny amount to correct the ph of my water, this bottle should last you a LONG time
Reviewed in the United States on April 23, 2025 by Sean Chladek
Size: 1 Quart
Works fantastic, wish it was a tad cheaper. But it is a decent sized bottle. Since I only use about 18 drops for my water.
Reviewed in the United States on September 7, 2024 by Player
Size: 1 Quart
It works as it's supposed to. Make sure to use a little at a time as it's pretty much trial and error. But does do the job well.
Reviewed in the United States on April 11, 2025 by Richard L.
Size: 1 Quart
Fox Farm hands down makes the best grow products out there. This stuff is so potent. My tap water comes out around 7-8 ph, and I want 6. I have a 6L hydro system and only need 1/8th of a tsp of this, which actually brings it down to 4 ph. I thought my PH tester was broken so I bought a new one, and it gave the same readings.
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Reviewed in the United States on March 4, 2025 by Jonathan
Size: 1 Quart
I’ve been using Fox Farm pH Down to manage the acidity in my hydroponic garden, and a little truly goes a long way. It’s especially effective for quick adjustments when you’re working with standard setups. However, if you’re using tap water or have an organic system (I use bacillus along with some other beneficials for root rot), this might not be your best bet. The product’s effectiveness tends to wane faster under these conditions. The reason? It’s primarily citric acid-based, which organisms can metabolize quickly. This means it loses its pH-lowering power sooner than you might expect, leading to potential fluctuations in your system. For more stable pH control in organic setups, consider switching to a phosphorus-based pH down. This type will generally maintain its effects longer, keeping your garden’s acidity levels more consistent.
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Reviewed in the United States on July 10, 2024 by J-town
Size: 1 Quart
I do both hydro and soil and i have a lot of plants. and this thing is great for one thing. ph'ing at the start. it only take a small amount which is great. but if you have the tech. like soil PH meter and other things that monitor your plants health. This stuff will not only change ph back to the orignal PH it was. but it wwill blow past it. for example. Hydro. i use RO water of course and when PH down to 5.7 ph for hydro. 3 hours later it jumps to 6.4. and it always does this... With soil it even worst. i will ph to 6.3 for soil and it will jump to 7.6 and this is wwith non organic soil. so it just medium and nothing else.... so this should not happen... the worst part is the soil depth. each depth has a different ph..... the moment i swapped to a different brand. my problems went away..... this stuff will change the ph in the soil and also change depending on the depth of the soil. not sure why. but i have a soil ph meter in each plant at different depth.... dont buy this stuff... also there soil is not great either if you watch a video it compare in blind fold test.
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Reviewed in the United States on November 12, 2024 by anthony c.