API CO2 Booster, 8 OZ, multicolor, Fl Oz (Pack of 1)

Product description shows instructions and other labeling is in English. But the product I received is in Chinese. Seller could have provided English labelling or instructions with the package.

Useless not worth it

Great to boost aquarium plants, new set ups etc.

Excellent product .. was delivered in a well packaged form and have been using it on 2 of my small fish tanks and the plants have rapidly been growing well without any apparent harm to the fish. Good product and worth picking this up along with the API quick start . These two products enables me to keep the fish tanks balanced and healthy.

Just a bit expensive but really Do the job!!!!!

I was skeptical to say the least. I've used leaf zone and that doesn't really do anything. I even tried a yeast based co2 injection which made bubbles but didn't seem to do anything either. So I decided to give this product a whirl... For one example- I've had java and christmas mosses in my tank for months and haven't done anything except fade away. Once I started adding Co2 booster, I actually saw growth! Same with my dwarf hairgrass. Other plants don't seem that affected, but no worse. Shrimp and fish are safe. So, I'd say this product is effective. I don't use it every single day- maybe I remember every third day.

FIRST you need to know this is not a FIX for CO2 in your tank. NO. It however is a very effective algaecide. Algae require CO2 like all plants to Photosynthesise food. By killing algae you are basically making more CO2 available for your plants. Also if you keep any sort of algae grazers, like Ottos or even shrimp, this could reduce the food available to them. This is a very potent chemical - so use sparingly and as last resort as algae control.