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DIY CO2 System for Planted Aquarium

This article will attempt to cover all aspects of DIY CO2 systems used on freshwater-planted aquaria. Insights into the needs of aquatic plants in relation to CO2, and how this relates to CO2 injection methods | DIY CO2 System for Planted Aquarium A Treatise on DIY CO2 Systems for Freshwater-Planted Aquaria by John LeVasseur This article will attempt to cover all aspects of DIY CO2 systems used on freshwater-planted aquaria. Insights into the needs of aquatic plants in relation to CO2 and how this relates to CO2 injection methods will be described. It will examine mechanical designs and the biology of yeast relating to its ability and conditions by which it produces carbon dioxide. Formulas for yeast mixtures and some details on construction projects will also be provided. Contents 1. Plants and CO2 2. DIY CO2 Basics 3. Some examples of system designs 4. More than you need to know about yeast 5. Guidelinesfor Mixtures and Capacities 6. ConstructionuProjects 7. Conclusion Plants and CO2 Carbon is the fundamental element that all life on this planet is based. Plants are no exception. Since plants have no way of getting to their food sources nutrients have to be obtained from their surrounding environment. Plants use many macro and micronutrients carbon dioxide CO2 being one of the primary macronutrients. In an aquarium the limiting factors are most likely to be in order light CO2 micronutrients trace elements and macronutrients. Micro and macronutrients are usually supplied in adequate quantities by fish waste and the addition of fertilizers. Plants use a process known as photosynthesis to produce the carbohydrates they need for life. Photosynthesis requires light for energy and CO2 to drive the chemical reactions. The process of photosynthesis requires a specific light energy threshold. In other words there is a point where light has reached a specific intensity to start photosynthesis. If the light is not bright enough photosynthesis will not occur. Beyond that threshold and up to some high light level photosynthesis will run faster and faster. According to known practice when light levels exceed two watts per gallon supplementary CO2 is required for most aquariums. In our