pH Down by Hy-gen

Name: pH Down by Hy-gen
Brand: HY-GEN
Price: 15.0 AUD
Availability: InStock

$15.00

Shipping calculated at checkout.

Size

250ml

1L

5L

Quantity

Handpicked by growers
Ships today
Real advice, real people
5,000+ high yielding customers
30-day returns*
Free shipping over $499*

In stock, ready to ship
Backordered, shipping soon

Pairs well with

HY-GEN® pH DOWN contains 85% food grade Orthophosphoric acid and will to LOWER the pH when added to your growing system. It’s recommended that you prepare your nutrient solution first and allow it to equilibrate; this can take up to 60 minutes depending on the size of your tank. Always add the required amount of pH DOWN to a small separate container of water and mix well before adding to your nutrient tank.

[{"id":49937644880170,"title":"250ml","option1":"250ml","option2":null,"option3":null,"sku":"","requires_shipping":true,"taxable":false,"featured_image":{"id":48029876584746,"product_id":9703115751722,"position":2,"created_at":"2025-02-12T14:54:19+11:00","updated_at":"2025-05-21T14:10:35+10:00","alt":"pH Down by Hy-gen","width":449,"height":449,"src":"\/\/www.thegrowguys.com.au\/cdn\/shop\/files\/pH-Down-by-Hy-gen-2.webp?v=1747800635","variant_ids":[49937644880170]},"available":true,"name":"pH Down by Hy-gen - 250ml","public_title":"250ml","options":["250ml"],"price":1500,"weight":1000,"compare_at_price":null,"inventory_management":"shopify","barcode":null,"featured_media":{"alt":"pH Down by Hy-gen","id":39662082949418,"position":2,"preview_image":{"aspect_ratio":1.0,"height":449,"width":449,"src":"\/\/www.thegrowguys.com.au\/cdn\/shop\/files\/pH-Down-by-Hy-gen-2.webp?v=1747800635"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":49937644912938,"title":"1L","option1":"1L","option2":null,"option3":null,"sku":"","requires_shipping":true,"taxable":false,"featured_image":{"id":48029876617514,"product_id":9703115751722,"position":1,"created_at":"2025-02-12T14:54:19+11:00","updated_at":"2025-05-21T14:10:34+10:00","alt":"pH Down by Hy-gen","width":849,"height":849,"src":"\/\/www.thegrowguys.com.au\/cdn\/shop\/files\/pH-Down-by-Hy-gen.jpg?v=1747800634","variant_ids":[49937644912938,49937644945706]},"available":true,"name":"pH Down by Hy-gen - 1L","public_title":"1L","options":["1L"],"price":3500,"weight":0,"compare_at_price":null,"inventory_management":"shopify","barcode":null,"featured_media":{"alt":"pH Down by Hy-gen","id":39662082916650,"position":1,"preview_image":{"aspect_ratio":1.0,"height":849,"width":849,"src":"\/\/www.thegrowguys.com.au\/cdn\/shop\/files\/pH-Down-by-Hy-gen.jpg?v=1747800634"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":49937644945706,"title":"5L","option1":"5L","option2":null,"option3":null,"sku":"","requires_shipping":true,"taxable":false,"featured_image":{"id":48029876617514,"product_id":9703115751722,"position":1,"created_at":"2025-02-12T14:54:19+11:00","updated_at":"2025-05-21T14:10:34+10:00","alt":"pH Down by Hy-gen","width":849,"height":849,"src":"\/\/www.thegrowguys.com.au\/cdn\/shop\/files\/pH-Down-by-Hy-gen.jpg?v=1747800634","variant_ids":[49937644912938,49937644945706]},"available":true,"name":"pH Down by Hy-gen - 5L","public_title":"5L","options":["5L"],"price":17000,"weight":0,"compare_at_price":null,"inventory_management":"shopify","barcode":null,"featured_media":{"alt":"pH Down by Hy-gen","id":39662082916650,"position":1,"preview_image":{"aspect_ratio":1.0,"height":849,"width":849,"src":"\/\/www.thegrowguys.com.au\/cdn\/shop\/files\/pH-Down-by-Hy-gen.jpg?v=1747800634"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}]

{"id":49937644880170,"title":"250ml","option1":"250ml","option2":null,"option3":null,"sku":"","requires_shipping":true,"taxable":false,"featured_image":{"id":48029876584746,"product_id":9703115751722,"position":2,"created_at":"2025-02-12T14:54:19+11:00","updated_at":"2025-05-21T14:10:35+10:00","alt":"pH Down by Hy-gen","width":449,"height":449,"src":"\/\/www.thegrowguys.com.au\/cdn\/shop\/files\/pH-Down-by-Hy-gen-2.webp?v=1747800635","variant_ids":[49937644880170]},"available":true,"name":"pH Down by Hy-gen - 250ml","public_title":"250ml","options":["250ml"],"price":1500,"weight":1000,"compare_at_price":null,"inventory_management":"shopify","barcode":null,"featured_media":{"alt":"pH Down by Hy-gen","id":39662082949418,"position":2,"preview_image":{"aspect_ratio":1.0,"height":449,"width":449,"src":"\/\/www.thegrowguys.com.au\/cdn\/shop\/files\/pH-Down-by-Hy-gen-2.webp?v=1747800635"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}

Growers First, Retailers Second

Welcome to The Grow Guys

We built The Grow Guys from the soil up — well, coco and perlite. Before we sold gear, we bought it, ran it, and learned the hard way what's worth the money and what ends up in the shed. That's the filter everything on our shelves passes through. No sales scripts, no rebadged junk, no telling you what you want to hear. Just gear we'd run ourselves and advice from people who actually grow. Chasing higher yields, tighter flowers, or your first harvest? You're in the right place.

Meet The Grow Guys