Has anyone used this long-term? Thoughts-?

Yes I've used "one", for a year and a half. very effective for plant growth. Simple to use, however it's almost impossible to find additional CO2 cans without having to buy the whole kit.

can i use a glass diffuser instead of the 2 big plastic containers

i tried using an aftermarket glass diffuser but didnt work :( i guess the pressure in the cans arent enough pressure to push through the glass. Well I also guess it depends on the type of diffuser but didnt work for me

Can anyone tell me, would this diffuser work with a 55 gallon planted aquarium? Any other hints or advise would be greatly appreciated.

Hello Robert, To be honest this is what I found regarding this product. We have thousands of products so based off of the manufacturer description this is what I found. "Gulfstream Tropical AGU00512 Ista Co2 Diffuser SetCo2 Diffuser Set A perfect CO2 supply for small planted aquarium or beginners simple to set up and operate extendable CO2 diffusing chamber provides options of CO2 supplying rate. Include 1 can pressurized liq 1 check valve, 1 CO2 diffuser 1 flexible tube.Features Ista co2 diffuser set Indisputable quality and reliability These are the most practical diffusers available "I think it is mostly for a smaller space. 55g is quite large, I believe this is better suited for small/med aquariums. Hope this helps. Gabriela

Is there replacement co2 cans?

I also tried to find replacement but only could find the whole set including the diffuser. However it seems to be a good deal anyway, as the set can be compared to other brands CO2 bottles only, for a cost stand point.

Ista Ica Complete Kit Co2 Cylinder 550cc 300 G

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Description

🌿 Elevate your aquarium game with seamless CO2 infusion!

SCALABLE SOLUTION - Easily link multiple kits to cover expansive aquatic environments
COMPACT POWERHOUSE - Sleek 550cc cylinder fits seamlessly into any aquarium setup
SCIENTIFICALLY BACKED - Formulated with top-quality conditioners ensuring ethical and effective water treatment
STARTER FRIENDLY SETUP - Simple installation designed for both beginners and pros to boost aquatic growth
EFFORTLESS CO 2 DELIVERY - Optimized diffusion through natural water movement for healthier plants

The ICA Complete Kit CO2 – Cylinder 550cc 300g offers a compact, efficient, and scalable solution for aquarium CO2 delivery. Designed to optimize plant growth through natural water movement diffusion, it supports multiple unit coupling for larger tanks. Backed by scientific rigor and premium conditioners, this kit is perfect for professionals and enthusiasts aiming to create vibrant, thriving aquatic ecosystems.

Specifications

ASIN	B005DGJBYW
Batteries Included	No
Batteries required	No
Best Sellers Rank	72,132 in Pet Supplies ( See Top 100 in Pet Supplies ) 756 in Aquarium Water Treatments
Customer Reviews	3.8 3.8 out of 5 stars (109)
Date First Available	16 Aug. 2012
Delivery information	We cannot deliver certain products outside mainland UK ( Details ). We will only be able to confirm if this product can be delivered to your chosen address when you enter your delivery address at checkout.
External Testing Certification	Não aplicável
Item Weight	9.07 g
Item model number	512
Number of Items	1
Pet Type	Fische
Product Dimensions	0.05 x 0.05 x 0.05 cm; 9.07 g
Quantity	1
Volume	5500 Millilitres

Reviews

J**P

Good

It does as it should. I can’t comment on whether it actually helps plants grow yet as I don’t think it has been long enough.

15.02.2026

S**L

Will update when I've used it for a couple of weeks.

Not sure if it's helping the plants as I only set it up today. It's working though, I can see the c02 is going in to the tank and its worth a try for a starter with c02.

7.01.2026

V**T

Good for nano tanks

Works for a nano tank, but useless for tanks larger than 30L

24.07.2025

A**R

Surprisingly good

Excellent bit of kit for little money, even had plant enhancement in 240L tank.

24.03.2025

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ISTA ICA Complete Kit Co2 – Cylinder 550Cc 300 g

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