What is the reason for needing a solenoid? How will the system run without one?

The solenoid will control the co2 output. When turn off the solenoid, there will not be co2 out from the generator. If without the solenoid, the co2 will keep output.

How long do I have to wait before using the set up in my tank?

You can use it as soon as the needle is in the green.

How can i replace the needle valve. Mine is broken alternating between full throttle or 0?

This isn’t a replacement part for the co2 generator it’s valve for a co2 tank. I recommend contacting the manufacturer.

For a 4l co2 generator, should i put in 600-800 gram each of material a&b? also do i pour in 300ml water or more? i've read different opinions online.

I use 600 ml for the material each and 800 ml of water I freeze the water in try"s that make long round ice cubes the cube are made to put in water bottles

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Fzone 2.5 L Aquarium CO2 Generator System Carbon Dioxide Reactor Kit with Regulator and Needle Valve for Aquarium Plants Tanks

Product ID: 513184979

Details

Brand
FZONE
Item Weight
2.36 kg
Liquid Volume
2.5 liters
Manufacturer
FZONE
Unit Count
1 Count

⏲️12V DC solenoid timer for CO2 control

⚙️Precision needle valve with bubble counter

🛡️1.5mm SUS304 stainless steel, 25% thicker

37467 kr

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Sold byAmazon IcelandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🌿 Elevate Your Aquarium Game with Precision CO2 Control!

COMPLETE DIY KIT - All-in-one 2.5L system includes regulator, needle valve, bubble counter, and safety valve for hassle-free setup and peace of mind.
SMART CO 2 SCHEDULING - 12V DC solenoid timer lets you customize CO2 injection times, optimizing plant growth while saving resources.
PRECISION CO 2 DELIVERY - Fine-tune your aquarium’s CO2 flow with a professional-grade needle valve and integrated bubble counter for steady 1 bps output.
CORROSION PROOF PROTECTION - Built-in check valve prevents water backflow, safeguarding your CO2 tank from rust and extending system lifespan.
BUILT TO LAST BUILT TO PERFORM - Robust 1.5mm SUS304 stainless steel bottle withstands up to 80kg/cm² pressure for unmatched durability and safety.

The Fzone 2.5L Aquarium CO2 Generator System is a professional-grade DIY kit featuring a 25% thicker SUS304 stainless steel bottle capable of withstanding high pressure. It includes a precision needle valve with bubble counter for accurate CO2 flow, a safety valve, and a 12V DC solenoid timer for customizable CO2 injection schedules. Designed to deliver steady CO2 for up to one month, this corrosion-resistant system ensures optimal aquatic plant growth and long-lasting performance.

Specifications

ASIN	B0B5R18XDV
ASIN	B0B5R18XDV
Allergen Information	Tree nuts may contain
Best Sellers Rank	#58,802 in Pet Supplies ( See Top 100 in Pet Supplies ) #211 in Aquarium Air Pump Accessories
Brand Name	FZONE
Customer Reviews	4.2 4.2 out of 5 stars (988)
Date First Available	January 8, 2023
Global Trade Identification Number	00689323444083
Item Weight	2.36 kg
Item model number	2.5 L
Liquid Volume	2.5 liters
Manufacturer	FZONE
Manufacturer	FZONE
Manufacturer Part Number	2.5 L
Model Number	2.5 L
Number of Items	1
Pet Type	Fish
Product Dimensions	12.99 x 3.94 x 13.78 inches; 5.2 pounds
Target Species	Fish
UPC	689323444083
Unit Count	1 Count
Warranty Description	1 year

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37467 kr

Duties & taxes included

In stock

Sold byAmazon IcelandDelivered 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 Iceland.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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Best international shipping I've ever tried. Worth every penny!

3 days ago

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The MOLLE sheath is of exceptional quality. Very happy with my purchase.

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