What is the amount per gallon mixing ratio?

I use up to 3-4ml per gallon sometimes, depending on my nutrients, water and stage of plant growth. It will vary depending on what you're growing and where your particular plant's needs fall on the nutrient/ph charts. For hydroponics/coir it is recommended by manufacturer to range between 5.5 and 6.5.

can you list ingredients with %. Thank you!

exact amounts are a trade secret however the MSDS on this states:Phosphoric acid 10 - 30%Ammonium dihydrogenorthophosphate 5 - 10%Citric acid 5 - 10%in comparison the dyna-gro ph down has:Phosphoric Acid H3PO4 33%Nitric Acid HNO3 11.5%That being said there are benefits to some of these ingredients. N-NitrogenP-PhosphorusK-PotassiumPhosphoric acid provides: PAmmonium dihydrogenorthophosphate provides: N and PCitric acid: other than lowering ph, does nothing useful. made from oxygen and hydrogen not in any usable form as far as I can find.Nitric Acid provides: NOverall either product seems to provide similar benefits.Dyna-gro is half the cost.

ingredients? Concentration?

It’s not organic if that’s what you mean ingredients. I haven’t used this in a long time. I want to say I’d use like 20ml for 5 gallons. I switched to another branf

Is this safe for aquaponics systems?

I would think so. I use it to lower the pH of the water I use to water my plants sometimes, both inside and out.

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🌿 Master your grow with precision pH control!

PRECISION P H CONTROL - Easily fine-tune your nutrient solution with 946 ml of concentrated pH down liquid.
TRUSTED BRAND QUALITY - From General Hydroponics, a leader in advanced growing solutions trusted by pros worldwide.
EFFORTLESS APPLICATION - Liquid formula ensures quick and even mixing, preventing nutrient lockout and boosting growth.
UNIVERSAL COMPATIBILITY - Perfectly balances pH in soil, hydroponic, and organic growing systems for optimal plant health.
BULK SUPPLY FOR SERIOUS GROWERS - Large 946 ml bottle means fewer refills and uninterrupted cultivation cycles.

General Hydroponics GH pH Down is a 946 ml liquid solution designed to lower pH levels in soil and hydroponic nutrient systems, ensuring optimal nutrient uptake and healthier plants. Ideal for professional and hobbyist growers seeking reliable, fast-acting pH adjustment.

Reviews

S**I

添加後に待ち時間が必要

Phの調整に最適ですが、結果が出るまで時間がかかります。添加後、最低30分ぐらいしてからPhを測らないと正確ではありません。添加してもあまり変わらないと思って、さらに添加すると30分後大変なことになります。1ml量れるスポイトがオススメ。

14.06.2025

D**N

安定の

ph調整剤です。愛用品です。

3.03.2024

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Manufacturer	General Hydroponics
Part number	HGC722120
Item Weight	576 g
Product Dimensions	8.26 x 8.26 x 22.23 cm; 576.06 g
Is Discontinued By Manufacturer	No
Specific Uses For Product	Hydroponics
Batteries Included	No
Batteries Required?	No
Item Dimensions LxWxH	8.3 x 8.3 x 22.2 cm

General Hydroponics GH pH Down ペーハーダウン 946ml

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