


ISTA CO2 Tablets gradually dissolve to release carbon dioxide, an easy, convenient way to supply CO2 to water plants.
Drop a tablet into the water. It dissolves gradually and releases CO2 as it goes, which ISTA compare to the output of their cartridge sets.
This is the simplest form of CO2 supply and it suits a small planted tank with no pressurised system. It is not a substitute for injected CO2 on a high-light tank.
Returns are accepted within 7 days of delivery, provided the item is unused and in its original packaging. Manufacturer-sealed items cannot be returned once the seal is broken, and sale-priced items are not refundable.
If your item arrives defective or damaged, message us on WhatsApp with your order number, or email us if you would rather, and we will replace it. Approved replacements are delivered within 3 to 5 business days. Transit damage is covered by insurance on every shipment. If tracking shows delivered but nothing reached you, tell us within 72 hours, which is the reporting window Indian couriers allow. Damage caused during installation or use is not covered; replacement spares for such cases are chargeable.
Full terms are on our Cancellation & Returns page.
Verified Owner
Verified Owner
It creates layer of white powder on top of water after the tab is completely dissolved. I did not find it to be useful.
Verified Owner
I would recommend this product for all aquarist who has a hobby of having an planted aquarium. Go for it as additional…
Verified Owner
It helps to grow the plant more greenly.
Verified Owner
Very good and nice product