The Planted Tank Forum - View Single Post - WANTED: Your best Hagen CO2 recipes!
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Old 11-18-2004, 06:55 PM   #21
George
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I have two units in my Juwel Rio 125. I use supermarket yeast (activator) and bi-carbonate of soda (stabiliser). They're much cheaper and it allows me to increase the co2 output by adding more yeast. I change the solution every 14-20 days and have acheived wonderful results. I use nearly half teaspoon of yeast, level teaspoon of bicarb, fill just over the line with sugar and over the line with water (slightly warmer than tepid which gets the bubbles started much quicker). The bubbles are flowing normally after 2 hours, max flow after 3 days, constant for about 10 days then slowly dwindling after 14. I change the mixture when there are 3 bubbles or less in the diffuser. HTH
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