zeolite and nitrates - The Planted Tank Forum
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post #1 of 3 (permalink) Old 03-09-2005, 09:34 PM Thread Starter
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zeolite and nitrates

ive read somewhere that saturated zeolites increase the amount of nitrates in the water. can i use, already used and saturated zeolite to increase the nitrates in a tank thats reading zero nitrates.

125 ga. Pressured co2. T5ho
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post #2 of 3 (permalink) Old 02-19-2011, 09:55 PM
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I might be wrong here, but I think zeolites are something that can hold on to nitrates or other anything else and release it back out in small amounts. I am saying this wrong but you get the idea. I dont think zeolites by themselves have that property.
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post #3 of 3 (permalink) Old 02-20-2011, 12:10 AM
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Zeolites are usually used to remove ammonia in a tank without the proper population of nitrifying bacteria.

Other things, usually with a positive charge, are attracted to the zeolite. The various things have different levels of attraction.
When something is attracted to the zeolite (for example ammonia) with a stronger attraction that something already attached to it (perhaps sodium), then the material with the lighter attraction (sodium) is bumped off, and the material with the stronger attraction (ammonia) gets next to the zeolite.

There is a use in agriculture where ammonia laden zeolite is used as a fertilizer.
Ammonia added to the soil is often used by the plants right away, but if not the soil bacteria may change it into nitrate by the same process that happens in our tanks.
If this is what you had heard, thinking of it as a source of nitrate fertilizer for your aquarium, then no, I do not think this is a good idea.

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