--- product_id: 111977982 title: "Standard Hydroponics pH Up and Down Kit - 10 Ounce Bottle pH Adjuster for Hydroponic Systems, Coco Coir Even Soil." brand: "dave ocean33" price: "€ 42.57" currency: EUR in_stock: true reviews_count: 8 category: "Dave Ocean33" url: https://www.desertcart.pt/products/111977982-standard-hydroponics-ph-up-and-down-kit-10-ounce-bottle store_origin: PT region: Portugal --- # 35% concentration for max nutrient uptake Precise 0.5 mL graduated pipettes included 10 oz bottles with 50% more volume than standard Standard Hydroponics pH Up and Down Kit - 10 Ounce Bottle pH Adjuster for Hydroponic Systems, Coco Coir Even Soil. **Brand:** dave ocean33 **Price:** € 42.57 **Availability:** ✅ In Stock ## Summary > 🌿 Elevate your grow game—because your plants deserve precision and power! ## Quick Answers - **What is this?** Standard Hydroponics pH Up and Down Kit - 10 Ounce Bottle pH Adjuster for Hydroponic Systems, Coco Coir Even Soil. by dave ocean33 - **How much does it cost?** € 42.57 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/111977982-standard-hydroponics-ph-up-and-down-kit-10-ounce-bottle) ## Best For - dave ocean33 enthusiasts ## Why This Product - Trusted dave ocean33 brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **More Value, More Drops:** Each 10 oz bottle delivers 1000+ drops, giving you 50% more solution than typical 8 oz bottles. - • **Safe & Versatile Formula:** Non-corrosive blend with phosphoric acid, citric acid, and potassium compounds—perfect for hydroponics, soil, and even fish tanks. - • **Trusted Canadian Best Seller:** Join thousands of growers who rely on the #1 pH kit in Canada to keep their plants thriving. - • **Dual Pipettes for Exact Dosing:** Two 3 mL droppers with fine graduations ensure you never over or under dose your plants. - • **Maximize Growth with Precision:** Adjust pH effortlessly using highly concentrated formula for optimal nutrient absorption. ## Overview The Standard Hydroponics pH Up and Down Kit features a potent 35% concentration formula in two 10 oz bottles, each providing 50% more volume than standard kits. It includes two precision pipettes with 0.5 mL graduations for accurate dosing, ensuring optimal pH balance in hydroponic, coco coir, and soil systems. This non-corrosive, grower-designed formula is safe for use in fish tanks and is the #1 best-selling pH adjuster in Canada, trusted by over a thousand growers for superior plant nutrient uptake. ## Description Product description To maximize plant growth, the pH level of your nutrients should be slightly acidic. Experienced growers consider the ideal pH for most crops to fall between 5.5 and 6.5. Users of Standard Hydroponics nutrient products generally do not experience problems maintaining the proper pH range because our formulas are NOT pH buffered. However, some important exceptions do exist. pH can acidify to an unacceptable level when nutrient solutions are used with poor quality water, or pH unstable media, such as rockwool. High growth rates can also destabilize pH. 3 Types Of Growers That Can Benefit Besides Soil pH Watering From pH up and down Large Scale Indoor Farming Growers Standard Hydroponics runs our formula a bit higher then leading brands so you get longer lasting pH levels so you dont have to adjust as much. Coco Coir or Soil Growers From Watering Plants and Checking water Run offs for pH Grow media like coco peat needs about 5.8 to 6.3 ph and a flush of pH 6.8 to 7.0, as well as in soil you can read the slurry in soil ( MUD ) pH or check the water run off in tray to see what pH is. use pH Meter for this Basement Growers If you use growing media - rock wool ror advanced growers then you can use pH up and down to yield better results with nutrients Intake to the plants. Hydroponics, Soilless Grow Bags or Coco ~ 5.5 – 6.5 pH For hydroponic growing setups (as well as soilless growing mediums like coco coir) an optimum root zone pH is between 5.5 and 6.5. This is slightly more acidic than the optimal root pH for growing in soil. It’s a good idea to let the pH cover a range instead of always adjusting to the exact same pH number. Our team of Ph.D have known and practice running our pH at 5.3 ph at grow stage then going to 6.8 as your flower seems to have less lockouts and more growth along with alot of aeration in the water. 4 STEPS TO BE A pH GROW MASTER First Calibrate Your pH Meter or Use Drops - Test Strips PH is the measure of how “acidic” or “alkaline” something is, on a 1-14 scale. A pH of “7” is considered neutral, for example pure water has a pH of about 7. The measurements of pH has to do with the concentration of hydrogen in the sample. A grower can measure the pH of a water sample using special pH tester drops or a digital pH pen, like the one shown here my pocket. Pipette Grab Your Included Pipette. Squeeze Bulb To Suck Up Solution Of The pH Up or Down Best To Wear Gloves / Keep Off Clothes And Skin. For PH Down – Never Mix Nutrients or Supplements Directly With Each other Or You will Have A Major Bummer For PH Down – 1 mL/gallon of water will generally reduce your pH about 1 point. That’s just a very rough estimate, but gives you a starting point. In imperial measurements, will reduce the ph pH by 1 point. For PH UP For PH UP – PH Up is not potent stuff! It actually has a very weak effect. Compared to PH Down you will need to add much more PH Up to adjust the pH by the same amount. With PH Up, depending on how hard your water is you need to add 2-4mL/gallon of water to raise the pH 1 point. In imperial measurements that’s 0.4-0.8tsp/gallon. Soil ~ 6.0 – 7.0 pH In the wild, Many plants prefers a slightly acidic soil environment. For soil an optimum root zone pH for plants is between 6.0 and 7.0, with the most time spent with a pH between 6.2 – 6.9. It’s a good idea to let the pH cover a range instead of always adjusting to the exact same pH number. See which nutrients are best absorbed at which pH levels Review: Effective pH Adjustment Kit - The Standard Hydroponics pH Up and Down Kit 10 Ounce works well for keeping pH levels balanced in hydroponic systems, coco coir, or soil. The bottles are easy to use, and a little goes a long way. Essential for healthy plant growth and nutrient absorption. Review: Good product - Works well, as advertised. This is before applying to plants but after adjusting water pH. Pretty easy. A little goes a long way! ## Features - ➪ #1 BEST SELLER IN CANADA - STANDARD HYDROPONICS pH Kit For Hydroponic Growing Systems is Critical So You Can Adjust pH To Maximize Plant Growth And Nutrient Up Takes Since Not All Water is The Same Across The Land. - ➪ ONE DROP GOES A LONG WAY With 35% CONCENTRATION - Having Hard Water Growing Plants Can Get Tricky And Very Annoying With pH Drifting, So We Run Our pH Formula ( Very Rich ) - This Allows Nutrients To Bind, So Your Plants Will Feed In The Grow Zone Longer. - ➪ PRECISION IS KEY - You Also Get ( 2 ) Pipettes, One For pH Up One & One For pH Down That Are 3 ml Pipette Droppers with 0.5 mL Graduations So You'll Always Know Just How Little Or How Much To Use. - ➪ WE GIVE MORE - With ( 2 - 300 ml Bottles = 10 oz each ) Our 10 oz Bottles Give You 1000 More Drops or 50 ml Per Bottle Then Your General 8 oz Bottles - We Wanted To Make Sure Your Plants Are Well Taken Care Of When You Use Standard Hydroponics by Dave Ocean - ➪ MADE BY GROWER FOR GROWERS - SAFER TO USE - We’re Not Just Changing The Rules We’re Changing The Game" Friendly. Simple. Powerful. NON CORROSIVE Only 4% Phosphoric Acid 25% Citric And 6% One Secret Additive And Pot Ash & Potassium Carbonate Makes Our pH Up | pH Down A Superior Safer To Use Blend, So You Can Use in Your Fish Tank And Soil As Well. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07NQTSP2Q | | Best Sellers Rank | #57,837 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #21 in Hydroponic Nutrients & Additives | | Brand | Dave Ocean33 | | Brand Name | Dave Ocean33 | | Coverage | Medium | | Customer Reviews | 4.6 out of 5 stars 1,285 Reviews | | Item Form | Liquid | | Item Weight | 8 Ounces | | Liquid Volume | 10 Fluid Ounces | | Manufacturer | Standard Hydroponics by Dave Ocean33 | | Model Number | E2001 | | Number of Items | 2 | | Part Number | E2001 | | Target Species | Fish | | UPC | 789692951066 | | Unit Count | 20.28 Fluid Ounces | | Warranty Description | 30 day if unused or opened | ## Product Details - **Brand:** Dave Ocean33 - **Item Form:** Liquid - **Item Weight:** 8 Ounces - **Liquid Volume:** 10 Fluid Ounces - **Manufacturer:** Standard Hydroponics by Dave Ocean33 ## Images ![Standard Hydroponics pH Up and Down Kit - 10 Ounce Bottle pH Adjuster for Hydroponic Systems, Coco Coir Even Soil. - Image 1](https://m.media-amazon.com/images/I/61twSO9D2rL.jpg) ![Standard Hydroponics pH Up and Down Kit - 10 Ounce Bottle pH Adjuster for Hydroponic Systems, Coco Coir Even Soil. - Image 2](https://m.media-amazon.com/images/I/71ODrEGI2PL.jpg) ![Standard Hydroponics pH Up and Down Kit - 10 Ounce Bottle pH Adjuster for Hydroponic Systems, Coco Coir Even Soil. - Image 3](https://m.media-amazon.com/images/I/71hHrlJvoxL.jpg) ![Standard Hydroponics pH Up and Down Kit - 10 Ounce Bottle pH Adjuster for Hydroponic Systems, Coco Coir Even Soil. - Image 4](https://m.media-amazon.com/images/I/610u7pYEwkL.jpg) ![Standard Hydroponics pH Up and Down Kit - 10 Ounce Bottle pH Adjuster for Hydroponic Systems, Coco Coir Even Soil. - Image 5](https://m.media-amazon.com/images/I/71-bX2TLJhL.jpg) ## Questions & Answers **Q: Is this for use in hydroponic nutrients? Or soil systems? Both?** A: It can be used in both. **Q: i see some ph up down kits come with pipettes and some don't Do these pH Kit come with pipettes?** A: Hello, We Love To Answer This Question. New Bottle Seals, Plus All pH Up Down Kits By Standard Hydroponics, comes With Two Pipettes. pH Up is 20% Strength And Works Amazing. pH Down Has Its 33% Blend With Mixed Citric Acid * HOCCO₂H₂. + Phosphoric H3PO4 We Guarantee and Stand Tall Behind Our Products Results, If something* don't seem right, then please reach out to us and we will help and guide you through it and fix any issues. we don't drag our feet when it comes to standard high quality products and service to our customers and fans. All The Best. Ray.B **Q: Is this ph kit for safe for growing organic food in a hydroponic tower garden?** A: Yes **Q: What is the shelf life, any expiration date?** A: as long its kept in cool are, it should never go bad as well you'll use it up before it goes bad ever. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Effective pH Adjustment Kit *by A***Z on March 15, 2026* The Standard Hydroponics pH Up and Down Kit 10 Ounce works well for keeping pH levels balanced in hydroponic systems, coco coir, or soil. The bottles are easy to use, and a little goes a long way. Essential for healthy plant growth and nutrient absorption. ### ⭐⭐⭐⭐⭐ Good product *by S***X on October 11, 2025* Works well, as advertised. This is before applying to plants but after adjusting water pH. Pretty easy. A little goes a long way! ### ⭐⭐⭐⭐⭐ 100 % recomended *by R***2 on April 22, 2026* Price and quality…are great… ## Frequently Bought Together - Standard Hydroponics pH Up and Down Kit - 10 Ounce Bottle pH Adjuster for Hydroponic Systems, Coco Coir Even Soil. - 2024 All-New pH Meter for Water - High Accuracy Digital pH Tester (0.01 Precision) with UL Certification and 3 pH Calibration Powders - Ideal for Home Water, Hydroponics, Aquariums, Pools, and More --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pt/products/111977982-standard-hydroponics-ph-up-and-down-kit-10-ounce-bottle](https://www.desertcart.pt/products/111977982-standard-hydroponics-ph-up-and-down-kit-10-ounce-bottle) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-05-17*