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advanced ph down 1 litre

by Advanced Nutrients

Price: $19.99 + $47.28 Shipping
In stock

Not Available in Mississauga( Please call-in )

Use small amounts when adjusting the nutrient solution to affect the pH level, as required. Use to maintain the optimum pH level of 5.5 to 5.8 for hydroponics and 6.2 to 6.3 for sphagnum moss and plants in containers. For best results, check the pH level daily.
$19.99 + $47.28 Shipping
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Product details
Product Dimension: 25.4 x 17.78 x 17.78 cm
Shipping Weight: 1.36 Kg
SKU: 2500

Manufacturer: Advanced Nutrients

Date first available: September 13 2019
Customer reviews: Be the first to review this item
Bestsellers Rank: #36 in Advanced Nutrients
Customer reviews

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Tim R

  Best pH down by far

March 11, 2021

Verified Purchase

This is one of the best pH Down products that I've used. With most I need to use 6ml per gallon to bring it to 5.5-6.5 from 8.0. With this I use 1ml per gallon, then every couple days I only have to add literally a few drops to keep it from going out of range. Actually the highest I've seen it go was 6.3 over 10 days. It holds way better then most. As most I need to reuse 6ml a gallon every 24hrs to keep it within range. And I mean it would be at 7.5 after 24 hrs.

j Smith

  Concentrated acid

October 20, 2020

Verified Purchase

At first i thought this stuff was garage because I could literally watch my pH rise right back up after adding the pH down. This was because the city puts pH buffers in the water to keep it from being acidic. Since using an RO system removed the pH buffers, the pH down works great. It has a higher viscosity than water. BE CAREFUL WITH THIS STUFF, its 55% phosphoric acid. Do not get this stuff of on you


  By far the Strongest

August 19, 2021

Verified Purchase

2.5 ml per 19 litres gets my towns water down to 6.25 ph perfect for growing cannabis. Compare this to 13 ml being required on other brands I've used. Very strong so the exact measurement is needed otherwise you will go too low and that is frustrating.

Kate Van De Wiele

  PH example

September 13, 2020

Verified Purchase

USE GLASES, USE GLOVES..get a friend to do it for you!
(500 Ml water bottle - 30 ml water+ 30 ml PH DOWN)
Then used about 10 ml of the 500 ml in a 5 gallon water bottle that was 7.1 Ph, brought the Ph to 4.5.


  Great value! Quality product.

August 10, 2020

Verified Purchase

Amazingly concentrated! I only need two tiny drops in 4L to bring it down to my desired water pH for watering my tropical house plants! This container is going to last a lifetime at that rate! Great value!


  To notch products

December 07, 2020

Verified Purchase

I have yet to try this ph down I have the full lineup of advanced nutrients so should have no issues I’m sure. If not they have a money back guarantee so have nothing to loose


  1 drop per 1 litre of water is all you need

April 28, 2020

Verified Purchase

Im using a carbon filter so my PH is off the charts in the 8s-9s this stuff only takes 1 drop of ph down to 1 litre of water for perfect PH for what im doing ?

Romulan Ron Mulligan

  Strong stuff

March 07, 2022

Verified Purchase

Only need a ml for a 5 gallon pail and a couple drops every couple days to keep it in range

brandon Mackay

  Works very well

June 16, 2019

Verified Purchase

Brings ph down really well if you have high
alkaline in your water supply


  If you seriously want to get getting into hydroponics

April 03, 2021

Verified Purchase

Absolute insane value. 0.5 ml to bring 2 gal down about 0.7 on the ph scale

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