Ziss ZC-II CO2 Generator – Chemical CO2 System for Planted Aquariums up to 200L
Trusted by 500+ aquascapers
- CO2 from the first minute, no fermentation wait
- No electricity and no pressure cylinder
- Adjustable valve sets the rate you want
- Covers planted tanks up to 200 L
- ZD-200 diffuser included
Ziss ZC-II CO2 Generator – Chemical CO2 System for Planted Aquariums up to 200L is backordered and will ship as soon as it is back in stock.
Fast delivery (1–5 days EU)
Carefully packed and protected
Tips from real aquascapers
Ziss ZC-II CO2 Generator – Chemical CO2 System for Planted Aquarium...
Ziss ZC-II CO2 Generator – Chemical CO2 System for Planted Aquariums up to 200L is backordered and will ship as soon as it is back in stock.
Description
Description
Ziss ZC-II CO2 Generator — Instant, Non-Electric CO2 for Planted Aquariums
The Ziss ZC-II is a chemical CO2 generator that produces carbon dioxide through a controlled neutralization reaction — no electricity, no pressurized cylinder, and no waiting period like traditional yeast-based bio-CO2 systems. It's designed for hobbyists who want the plant-growth benefits of pressurized-style CO2 without the cost or complexity of a full gas setup, making it a strong entry point into CO2-supplemented planted aquariums up to 200 liters.
Why it stands out from bio-CO2 and DIY systems
- Instant start-up: begins producing CO2 immediately — no fermentation lag like yeast-based DIY systems.
- Temperature-independent: stable output between 5–40°C, unlike yeast reactions that slow down in cooler water.
- No ethanol byproduct: clean chemical reaction, unlike fermentation-based generators.
- High purity output: up to 99% CO2 purity for efficient plant uptake.
- Adjustable speed control valve: lets you fine-tune the drip rate and therefore the CO2 output rate.
- Integrated pressure relief safety valve: built-in protection against overpressure.
- Includes ZD-200 diffuser: ready to dissolve CO2 into the aquarium out of the box.
Specifications
| Type | Chemical (non-electric) CO2 generator |
| Tank coverage | Up to ~200L |
| CO2 purity | Up to 99% |
| Operating temperature | 5–40°C |
| Refill | Ziss CR-160 kit (160g), ~45 days per refill in a 100L tank |
| Included | ZD-200 CO2 diffuser |
| Safety | Integrated pressure relief valve |
How it works
Close the speed control valve fully, add the CR-160 refill powder to the powder tank, then open the valve to set the drip rate of the upper solution (roughly one drop every 5–8 minutes for the standard kit). The dripping solution reacts with the powder to generate CO2 continuously, which is routed to the included ZD-200 diffuser inside the aquarium. A rough guide: one drop every 6 seconds corresponds to about 20ppm CO2 in a 100L tank — going much above 40ppm can stress fish and shrimp, so start conservative and increase gradually while monitoring livestock behavior.
Frequently Asked Questions
- Do I need electricity or a gas cylinder to run this?
- No — the ZC-II generates CO2 through a chemical reaction using the CR-160 refill kit, with no power source or pressurized gas cylinder required.
- How long does one refill last?
- The CR-160 kit (160g) typically lasts around 45 days in a 100L aquarium, depending on your drip rate setting.
- Is it safe for shrimp?
- Yes, when dosed correctly — keep CO2 output in a moderate range (around 20ppm) and monitor shrimp behavior, since shrimp are more sensitive to CO2 swings than fish.
- How do I check for leaks?
- Submerge the assembled ZC-II unit in water — any escaping bubbles from the seals indicate a leak that needs to be re-sealed before use.
FAQ
What makes Aquarium Boutique different from mass-market stores?
What makes Aquarium Boutique different from mass-market stores?
We don't sell everything — we sell only carefully selected products, personally tested. Every item is chosen with a clear purpose: to work well and last long. You don't need to guess about quality — we've already done that for you.
Do you ship to my country?
Do you ship to my country?
Yes, we ship across all of Europe. For Bulgaria we work with BOX NOW and Speedy — fast and reliable home or locker delivery. For other EU countries we use international courier services.
How quickly will I receive my order?
How quickly will I receive my order?
For orders within Bulgaria, we typically deliver within 1–3 business days. For other EU countries — usually 3–7 business days depending on location.
Can I return a product if I'm not satisfied?
Can I return a product if I'm not satisfied?
Yes. If something doesn't meet your expectations — contact us. We have a clear and fair return policy. Your satisfaction matters to us and we will find a solution.
Do you offer advice on product selection?
Do you offer advice on product selection?
Absolutely. Our team keeps aquariums and knows the products personally. Write to us — we'll help you choose the right solution for your tank, budget and experience level.
Are your products tested and approved?
Are your products tested and approved?
Yes. Every product in our store has gone through our personal selection and testing process . We only work with trusted brands and don't list products we don't believe in.
What payment methods do you accept?
What payment methods do you accept?
We accept all major payment methods — credit and debit cards, PayPal, and cash on delivery for Bulgaria. All payments are secure and encrypted.
How can I track my order?
How can I track my order?
After your order ships, you'll receive an email with a tracking link. You can follow the status in real time directly through the courier's website.
