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Old 01-22-2008, 04:00 PM   #1
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Fishy cycling... how long before ammonia shows up?

I've just started a cycle in a new tank 5 days ago. I have 4 small Giant Danios helping me get the cycle going in a 46 gallon bow front tank. Feeding them a small pinch of Tetra Min flakes twice a day.

Daily ammonia tests have been showing 0 PPM, still after 5 days.

Tested the Nitrites for the first time today as well and they are testing at 0 PPM as well.

What's a typical wait time before seeing ammonia show up?

Is it possible I need a few more Danios in this size tank? If so, how long should I wait before adding a couple more fish.



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Old 01-22-2008, 04:35 PM   #2
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It took almost 2 weeks with 2 goldfish (babies) in my 10 gal tank before my NH3 spike, with 5 danios in a 48 I would say it will take rather longer.

Although you can increase the bioload to hasten things, it is also more stressful for the fish as you would ahve a higher spike. If you have the patience, you can stay the course & wait. Someone here did an ultra-low bioload fishie cycling and managed to cycle a tank in about 60 days, but without any NH3 or NO2 spikes. This is stress free for the fish .... but 60 days is a looooong time!
80 gal FW with 30 gal DIY wet/dry/sump.
9 fancy golds, 1 hillstream loaches, 1 rubber-lip pleco (C. thomasi), 3 SAEs, small school of white cloud minnows, planted.
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ammonia, cycling, long

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