--- product_id: 13731106 title: "Atlas Scientific pH Up and Down 250ml (8oz)" brand: "atlas scientific environmental robotics" price: "€ 53.94" currency: EUR in_stock: true reviews_count: 8 category: "Atlas Scientific Environmental Robotics" url: https://www.desertcart.pt/products/13731106-atlas-scientific-ph-up-and-down-250ml-8oz store_origin: PT region: Portugal --- # Optimized for aquaponics & hydroponics 250ml precision dosing Efficient 3ml per liter usage Atlas Scientific pH Up and Down 250ml (8oz) **Brand:** atlas scientific environmental robotics **Price:** € 53.94 **Availability:** ✅ In Stock ## Summary > 🌿 Master your ecosystem’s pH like a pro—because precision is power. ## Quick Answers - **What is this?** Atlas Scientific pH Up and Down 250ml (8oz) by atlas scientific environmental robotics - **How much does it cost?** € 53.94 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/13731106-atlas-scientific-ph-up-and-down-250ml-8oz) ## Best For - atlas scientific environmental robotics enthusiasts ## Why This Product - Trusted atlas scientific environmental robotics brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Dual Solution Pack:** Includes both pH Up and pH Down in convenient 250ml bottles for total pH mastery. - • **Precision pH Control:** Easily fine-tune your water’s pH with just 3ml per liter—no guesswork, no waste. - • **Ready-to-Use Formula:** No dilution needed—just add directly and watch your aquatic ecosystem thrive. - • **Long-Lasting Efficiency:** Small doses go a long way, ensuring your supply lasts through many adjustments. - • **Hydroponics & Aquaponics Optimized:** Specifically designed to support the delicate balance of fish and plants. ## Overview Atlas Scientific’s pH Up and Down 250ml set offers precise, ready-to-use liquid solutions tailored for aquaponics and hydroponics. With efficient dosing at 3ml per liter, these dual bottles enable easy and accurate pH adjustments to maintain optimal water conditions for fish and plants, ensuring a thriving ecosystem with minimal effort. ## Description Atlas Scientific pH Up and Down 250ml (8oz): desertcart.com: Industrial & Scientific Review: Does what it says - Easy use good product does what it says Review: A little goes a long way! - I’ll start by saying I’m using this on water that’s already been through a 4 stage reverse osmosis system. That being said I’m already pretty close to the desired parameters. I’m making my water in gallon jugs and using a small syringe to add the solution. I needed to lower my PH just one full number and all it took was less than 3 ml of solution to do it. This should last quite a long time if it continues to be this efficient. So far I’m pretty happy with it. The bottles are pretty small but as little as it takes to adjust your levels it doesn’t really matter. ## Features - Great for Aquaponics and Hydroponics - One 250ml (8oz) pH Up and One 250ml (8oz) pH Down - Use 15mL (1 tbsp) per Gallon or 3ml per Liter - This hydroponic solution does not need to be diluted. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00P1MQWK4 | | Best Sellers Rank | #44,468 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #6 in Chemical Standards | | Brand | Atlas Scientific Environmental Robotics | | Brand Name | Atlas Scientific Environmental Robotics | | Customer Reviews | 4.5 out of 5 stars 4,412 Reviews | | Item Form | Liquid | | Item Weight | 8 ounces | | Manufacturer | Atlas Scientific | | Manufacturer Part Number | CHEM-pH-UD-8 | | Model Number | CHEM-pH-UD-8 | | Number of Items | 2 | | Number of Packs | 2 | | Pet Type | Fish | | Target Species | Fish and Plants | | UPC | 857434005305 | | Unit Count | 16 Ounce | ## Product Details - **Brand:** Atlas Scientific Environmental Robotics - **Item Form:** Liquid - **Item Weight:** 8 ounces - **Liquid Volume:** 250 ml - **Number of Packs:** 2 ## Images ![Atlas Scientific pH Up and Down 250ml (8oz) - Image 1](https://m.media-amazon.com/images/I/61LfnP-0byL.jpg) ## Questions & Answers **Q: Estos productos son para piscina?** A: No! **Q: So how do you know what the PH is in the soil n plant** A: You have to do a slurry test.. mix equal parts (2 ounces) of soil with ph neutral water(7ph) .. mix for about a minute, let sit for 5 minutes, then put ph meter in slurry mix. Your reading is your ph in your soil **Q: Can I use this in a hot tub** A: Why not just buy the correct product at a pool supply store (or Lowe’s, Home Depot, etc)? **Q: Hi.. Hydroponic newbie! is this considered "organic" compared to other ph up/down products sold? Thanks so much.** A: The ingredients are potassium carbonate and phosphoric acid. I couldn't tell you anything beyond that. Sorry ## Customer Reviews ### ⭐⭐⭐⭐⭐ Does what it says *by S***N on December 21, 2025* Easy use good product does what it says ### ⭐⭐⭐⭐⭐ A little goes a long way! *by A***W on June 26, 2023* I’ll start by saying I’m using this on water that’s already been through a 4 stage reverse osmosis system. That being said I’m already pretty close to the desired parameters. I’m making my water in gallon jugs and using a small syringe to add the solution. I needed to lower my PH just one full number and all it took was less than 3 ml of solution to do it. This should last quite a long time if it continues to be this efficient. So far I’m pretty happy with it. The bottles are pretty small but as little as it takes to adjust your levels it doesn’t really matter. ### ⭐⭐⭐⭐⭐ Not as Concentrated as others *by R***S on September 8, 2022* However this allows for more control and accuracy. And for some reason I seem to of had lower ppm readings with this product than others. Just have to use more. ## Frequently Bought Together - Atlas Scientific pH Up and Down 250ml (8oz) - VIVOSUN Digital pH and TDS Meter Kits, 0.01pH High Accuracy Pen Type pH Meter ± 2% Readout Accuracy 3-in-1 TDS EC Temperature Meter for Hydroponics, Pool and Aquarium, Yellow Blue, UL Certified - General Hydroponics CALiMAGic 1-0-0, Concentrated Blend of Calcium & Magnesium, Secondary Nutrient Deficiencies Helps Prevent Blossom End Rot & Tip Burn, Clean, Soluble, 1-Quart --- ## 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/13731106-atlas-scientific-ph-up-and-down-250ml-8oz](https://www.desertcart.pt/products/13731106-atlas-scientific-ph-up-and-down-250ml-8oz) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-09-26*