Will this system work with growing Cannabis?

It does. That’s what I bought it for. I have a 4x4 tent. With that being said, I would just buy a co2 tank and regulator if I had to do it over. The co2 will only last around 2 hours at 1500ppm. All the mixing required gets old and it’s a sticky mess. But it does work, sorta. Bottom line, save up 300 more and get a real co2 system.

How tall is whole assembly without the tank base? I have a stand with 17.5 inches of clearance, want to make sure it fits

Not sure but the stand does not add height. I dont think youll make it with 17 inches.

which CO 2 generator recommend for a 40 gallon aquarium

I'd use the ZRDR 4L i have it on my 55 been almost a month and still has a good bit of time before empty.

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Aquarium Co2 System 2L with Pressure Gauge for Aquarium Plants

Product ID: 494510422

Details

Brand
ZRDR
Item Form
composite
Item Weight
10.58 ounces
Liquid Volume
2 liters
Number of Packs
1

💧Advanced atomizer for fine CO2 diffusion

📊Built-in pressure gauge with auto relief

⚙️2L stainless steel CO2 tank

€ 226.72

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Sold byAmazon GreeceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🌿 Elevate your aquarium’s vibe with precision CO2 power — because thriving plants don’t wait!

DURABLE PRO GRADE BUILD - Crafted from 304 stainless steel, this system outlasts plastic alternatives with superior durability and high-pressure resistance.
MAXIMIZED CO 2 ABSORPTION - Dual atomizers refine bubbles into ultra-fine mist for rapid CO2 dissolution, supercharging your aquatic plants’ growth.
COST EFFECTIVE DIY REFILLS - Use simple, affordable citric acid and baking soda to generate CO2—cutting recurring costs and empowering sustainable aquarium care.
EFFORTLESS WATER INJECTION - Upgraded bubble counter with syringe-enabled water refill—no disassembly needed, keeping your setup seamless and efficient.
PRECISION PRESSURE CONTROL - Stay worry-free with an automatic pressure relief valve that kicks in at 30KG, ensuring ultimate safety and stability.

The ZRDR Aquarium CO2 System 2L features a robust 304 stainless steel tank with an integrated pressure gauge and automatic relief valve for safe, consistent CO2 delivery. Its upgraded bubble counter allows easy water refills without interrupting operation, while dual atomizers optimize CO2 dissolution for vibrant aquatic plant growth. Designed for cost-efficiency, it uses common household reactants like citric acid and baking soda, making it an eco-friendly and durable choice for professional aquarium enthusiasts.

Specifications

ASIN	B0B9XZMX8L
Best Sellers Rank	#255,052 in Pet Supplies ( See Top 100 in Pet Supplies ) #1,156 in Aquarium Air Pump Accessories
Brand	ZRDR
Brand Name	ZRDR
Customer Reviews	3.9 out of 5 stars 91 Reviews
Item Form	composite
Item Weight	10.58 ounces
Liquid Volume	2 liters
Manufacturer	ZRDR
Manufacturer Part Number	FSQ-Single-zsq
Model Number	2L-Single Gauge-Upgraded
Number of Items	1
Number of Packs	1
Pet Type	Fish
Target Species	Aquatic Plants
Unit Count	1 Count

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€ 226.72

Duties & taxes included

In stock

Sold byAmazon GreeceDelivered 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 Greece.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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