Give your Plants a Boosting. Want better looking plants quickly? I am pleased to announce my own Plant Booster as the next Fertilizer available from Dustin's Fish Tanks. Carbon Dioxide is something that EVERY Planted Aquarium could use more of. (People ask me constantly- Dude, do I need CO2?) You certainly need some. Remember folks, - Plants breath the opposite of human. Humans breath in and use oxygen and exhale Carbon Dioxide. YOUR Aquarium Plants do just the opposite. Plants absorb Carbon Dioxide and produce Oxygen. So give your plants what they want more of, Give them more CO2 This CO2 formula has been a blast to perfect and adjust in my own 220. Even Steve came over and mentioned how much more lush everything looked---with out me telling him I had been squirting this stuff in my tank. I have been using it for a full month in my 220 and I am please to tell you that its rocks. The Red Tiger Lotus get these insane dark red spots on them. The Crypt Balansae have started to show some great darker colors around the lower parts as well... This stuff is totally worth trying out. With this, you aren't only getting the Liquid CO2 Boost. More Importantly, you are getting a FULL write up of how to properly use it to get some great plant growth. Get a bottle and try it out. BUY some Liquid CO2 Boost! (NOTE- This price reflects the cost of shipping this product, post office raised shipping again) CAUTION: This is not for tanks with sensitive fish, shrimp or anything that you are worried about being stressed. This bottle is 500 ML. (treat your 55 for three months) 5 ML will treat a 50 gallon tank ONCE A DAY. 1 pump for a 10 gallon daily 2 pumps for a 20 gallon daily 3 pumps for a 30 gallon daily 4 pumps for a 40 gallon daily 5 pumps for a 50 gallon daily 8 pumps for a 75 gallon daily 12-13 pumps for a 125 daily My 220 gets 20 pumps daily.