to cycle ( i know i should know..) - Page 5 - Tropical Fish Keeping - Aquarium fish care and resources
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post #41 of 46 Old 10-03-2013, 05:55 AM
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NH3 + H20 <---> NH4+ + OH-

Notice the arrow goes both ways. It means that the rxn can go both ways, and you will generally have some NH3 and some NH4+ in solution depending on pH and temperature.

OH- In solution, exposed to air, the hydroxide ion reacts rapidly with atmospheric carbon dioxide, acting as an acid, to form, initially, the bicarbonate ion.
OH− + CO2 is in equilibrium with HCO3−

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post #42 of 46 Old 10-03-2013, 06:33 AM
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Terrific. Explains acidification. Thanks Rick. Can somebody please get the last couple of pages of this thread as a starter for an advanced thread?
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post #43 of 46 Old 10-03-2013, 06:43 AM
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Hello:
itís nice to hear your voice Rickey. I just want to say that all of those capital letters and numbers with arrows and plus and minus signs just confuse me. I like words better. I think we have reached a state of consensus about ammonia and the different states it can exist in as well as a number of suggestions on fishless cycling that I find helpful. I have been playing with the chart Hallyx posted itís great.

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post #44 of 46 Old 10-03-2013, 06:50 PM
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Quote:
Originally Posted by pop View Post
Hello:
it’s nice to hear your voice Rickey. I just want to say that all of those capital letters and numbers with arrows and plus and minus signs just confuse me.

pop
Confuses me too sometimes

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post #45 of 46 Old 10-04-2013, 05:23 AM
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Hey there folks this is a little video on how to cycle a new fish tank. Hope this helps out
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post #46 of 46 Old 10-06-2013, 09:05 AM
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Here you go. Pass it around to anyone who will benefit it or will benefit from it:

Water chemistry
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