Co2 Tablet 100/ Bottle



O2 tablets are a fast and easy method of supplying the aquarium using a timed release CO2 gas source - there is no need for a regulator or bottle. Take one tablet a day per 8gallons of water. One bottle can last 100 days in a tank of 10 gallons! A simple and quick method to add CO2 to your aquarium - Helps to stabilize pH and fight the problem of algae - 100 tablets
  • Description
  • Additional Information
  • Reviews


The CO2 tablet provides a quick and convenient way to dose your aquarium with a timed-release source of CO2 gas - no bottle or regulator is needed. Use one tablet per day for every 8 gallons of water. One bottle will last a 10-gallon tank for up to 100 days! Quick and easy way to provide CO2 in your aquarium. Helps stabilize pH and combat nuisance algae. 100 tablets.

Why you need Co2 Tablet

CO2 Helps Limit Excessive Algae Growth. If you can increase the amount of light that you provide an aquarium that is planted and more plants will have the potential to thrive and grow however, they also require additional nutrients to meet the intensity of light. If the light, nutrient levels, and CO2 levels in the aquarium aren't matched to each other, the tank isn't "balanced" and the health of the plants could be negatively affected. In the event that plants have difficulty making it through and thriving, the algae will profit from the circumstances and get beyond control. In the event that your tank is not adequately stocked with CO2, adding a CO2 injection can boost the health of your plants and increase growth dramatically when combined with the right lighting and fertilizer. If plants are flourishing with all the elements they require algae have little chance of being able to compete with the plants for light and nutrients. CO2 is utilized for photosynthesis. Have you heard of the phrase "carbon is the underlying element of all life"? It's not only applicable to animals such as us, however, but it's also applicable to plants too. Plants require carbon in order to carry out photosynthesis and to produce the food they need for themselves. This is a fundamental need, whether CO2 gas is introduced in the tank. In low-tech tanks plant, the plants use 3-5% percent (parts of a million) of CO2 naturally produced by the exchange of gas at the surface and from animal respiration. Certain plants are capable of using the bicarbonate compound and carbonate (KH) in the water as sources of carbon for photosynthesis however this takes greater energy and effort from plants when compared to the CO2 gas. In high-tech aquariums where CO2 is ad hoc dispersed into the aquarium to supply plenty of carbon "food" for plants, and to encourage growth. If combined with the right illumination as well as fertilization methods, CO2 injection could provide plants with the best chance to thrive and grow rapidly inside an aquarium.    
0.50 lbs
2.5 × 2.5 × 3.5 in
Helpful Questions From Clients
Frequently Asked Questions
Is hiring a professional necessary to set up a saltwater aquarium?

As a general rule, a larger custom aquarium might require installation by a professional. However, a kit from our online fish store is relatively affordable and beginner friendly. That means you should have no problem setting it up yourself.

Which saltwater aquarium fish should you choose when starting out?

Consider a yellow tang fish. This popular saltwater aquarium fish does a great job of coexisting with other types of fish you’ll find in our online fish store.

How does a saltwater aquarium differ from a freshwater one?

Saltwater aquariums require a bit more maintenance and monitoring than freshwater tanks. Different fish require different levels of salinity, pH tolerances, and temperature requirements. They also require specialized pumps, filters, and other equipment that can handle salt. We can guide you through everything you need to know to set up a healthy, thriving reef tank.

Do fish in a saltwater aquarium swim in a school?

That depends on the species. However, if it’s a fish that swims in a school in the wild, they’ll do the same in an aquarium. Some fish that swim in schools include the green and blue chromis, cardinalfish, and dartfish, for example. When ordering from an online fish store, make sure you do your research on how specific fish species behave to ensure they’ll school (or at least coexist) with your current fish.

Is the effort required to maintain a saltwater aquarium worth it?

Yes! Many aquarists dream of owning thriving saltwater aquariums. You have a tiny piece of the ocean in your home, featuring magical and exotic fish that can only survive in saltwater.