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Old 09-20-2013, 05:01 AM   #15
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DIY CO2 is a good idea to help avoid algae blooms, its cheap, quick and simply. The most you'd spend is on a diffuser, which can be bought for as little as $2-3
Use like a 24oz soda bottle for it, and you'll have CO2 streaming in that tank quickly. Best part is that it won't bother your betta at all, or shrimp if you do go shrimp in the future.
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