Does anyone know how much to put in per gallon for a Hydroponic setup?

This is for 5 gallons. I have been using this for tomatoes works great. 12 grams of the fertilizer. 12 grams calcium nitrate. 6 grams Epsom salt . You need gram scales. 28 grams in an ounce so not hardly half an ounce

I'm growing tomatoes and peppers in 20 gal. containers, what else do I need to go with this fertilizer?

Calcium nitrate and Epsom salt is all that's needed along with this. If in soil no need for pH down but if you using soiless mediums then just pH down your solution about 1/4 teaspoon to 2mls hope this helps. :)

As side dressing when tomato plant is already producing large tomatoes, how to use? sprinkle on soil or mix in water and pour on soil around root??

Hello, You can use either way. If you would like to use for a liquid application you will need to dissolve 2.5 grams of fertilizer per gallon of water, and then poor onto soil. Depending on the quality of the soil amounts vary, but one gallon of solution should be enough for about 15 to 20 adult tomato plants.

Can you put this straight into the reservoir of wicking tubs?

Hello, You can add it straight to the tubs but we usually recommend dissolving in a bit of water first for easier mixing.

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Greenway Biotech, Inc. Tomato Fertilizer 4-18-38 Powder - Water Soluble with Chelated Micronutrients for Tomatoes Peppers Eggplant - Bigger Fruit Better Flavor - Hydroponics or Soil - 25 LB

Product ID: 38707094

Details

Brand
Greenway Inc.
Item Form
Powder
Item Weight
25.2 pounds
Liquid Volume
1 liters
Specific Uses For Product
Hydroponic

🍅4-18-38 NPK ratio for max fruit yield

💧100% water soluble, no clogging

🧪Chelated micronutrients for pH 4-9 availability

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Description

🍅 Unlock Bigger, Tastier Harvests with Every Sprinkle!

EFFORTLESS APPLICATION - Fully water soluble powder dissolves instantly, perfect for drip, foliar, or hydroponic use
TRUSTED PURITY SAFETY - CDFA-registered and heavy metal tested for clean, reliable feeding every season
MICRONUTRIENT POWERHOUSE - EDTA-chelated Iron, Manganese, Zinc & Copper ensure nutrient uptake in any soil or hydro system
ONE FORMULA ALL NIGHTSHADES - Versatile for tomatoes, peppers, eggplants, potatoes & more—grow your entire garden with confidence
PRECISION NIGHTSHADE NUTRITION - Tailored 4-18-38 formula boosts fruit size & flavor without excess foliage

Greenway Biotech's Tomato Fertilizer 4-18-38 is a professional-grade, water-soluble powder designed specifically for nightshade crops like tomatoes, peppers, and eggplants. Featuring a high potassium formula to enhance fruit size, flavor, and shelf life, it includes chelated micronutrients for optimal nutrient availability across a wide pH range. Suitable for soil and hydroponic systems, this 25 lb pack is CDFA-registered and rigorously tested for purity, making it a trusted choice for both home gardeners and professionals aiming for superior yields.

Specifications

ASIN	B01MZIJ35S
Best Sellers Rank	#226,387 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #3,106 in Garden Fertilizers
Brand	Greenway Biotech, Inc.
Coverage	25
Customer Reviews	4.6 out of 5 stars 283 Reviews
Item Form	Powder
Item Weight	25.2 pounds
Liquid Volume	1 liters
Manufacturer	Greenway Biotech, Inc.
Mixing Ratio	4:18:38
Number of Items	1
Number of Packs	1
Part Number	Tomato_Parent
Specific Uses For Product	Hydroponic,Hydroponics
Target Species	Tomatoes
UPC	018227120944
Unit Count	400 Ounce

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¥115606

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In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Japan.

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