The Planted Tank Forum - View Single Post - help with aquarium dry fertilizers
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post #11 of (permalink) Old 03-14-2015, 03:27 PM
Diana
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Pressurized CO2 is not cheap to get into. Once the investment is made (equipment purchased) it becomes a very inexpensive way to keep the plants thriving. Refills of CO2 are pretty cheap considering how long they last.
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