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Old 02-17-2017, 08:48 AM   #1 (permalink)
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Default Ammonia issue

I have a 40b with 15 neons, 3 Cory cats ,2 dwarf g's a couple of snails and 4 ghost shrimp. The tank is fully planted and I do weekly 20% or more water changes but the ammonia level stays at .25 or slightly above. Could this be caused by high ammonium levels caused by the plants? I don't over feed and nothing's dead in the tank including plants the ph is 6.4 . Any theories of why this is happening would be appreciated.

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Old 02-17-2017, 11:04 AM   #2 (permalink)
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Default Ammonia levels

I have a 40b with 15 neons, 3 Cory cats ,2 dwarf g's a couple of snails and 4 ghost shrimp. The tank is fully planted and I do weekly 20% or more water changes but the ammonia level stays at .25 or slightly above. Could this be caused by high ammonium levels caused by the plants, lots of Java fern s.repins, Anubis ,ocelot sword, and a few others? I don't over feed and nothing's dead in the tank including plants the ph is 6.4 . Any theories of why this is happening would be appreciated.
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Old 02-17-2017, 01:10 PM   #3 (permalink)
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Default Re: Ammonia issue

How long has the tank been set up? What substrate do you use?

Plants don't cause an ammonia or ammonium increase, but they can reduce those levels if they are growing well.
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Old 02-17-2017, 02:20 PM   #4 (permalink)
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Default Re: Ammonia levels

Is this a newly setup tank or has been fully cycled?
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Old 02-17-2017, 02:43 PM   #5 (permalink)
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Default Re: Ammonia levels

It's about a month nitrite is 0 ppm nitrate is 5 to 10 and the ph is getting leeched by the safe t sorb. I'm fairly sure its cycled. And the fish and plants are doing wonderful I just can't account for the extra ammonia. I've checked the tap water and it shows 0 .
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Old 02-17-2017, 04:20 PM   #6 (permalink)
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Default Re: Ammonia issue

Good qustions, Hoppy. The ammonia could be coming from fresh soil substrate.

Agreed, the plants should be sucking up the ammonia/ammonium. Experiments show plants prefer ammonia over nitrites over nitrates, as they as easier to assimilate.
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Old 02-17-2017, 04:58 PM   #7 (permalink)
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Default Re: Ammonia levels

Did you change filter pad or any filter material if using a canister that could remove beneficial bacterial? Another thing maybe is, it might not have been fully cycled and when you added fish it slowly started to build up and bacterial couldn't keep up? Or is there a chance your test kit is old or bad? Last thing I can think of is what substrate? Maybe it's leeching into water column

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Old 02-17-2017, 05:44 PM   #8 (permalink)
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Default Re: Ammonia issue

It's about a month or so, nitrite is 0 ppm nitrate is 5 to 10 and the ph is getting leeched by the safe t sorb. I'm fairly sure its cycled. And the fish and plants are doing wonderful I just can't account for the extra ammonia. I've checked the tap water and it shows up as zero.
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Old 02-17-2017, 06:25 PM   #9 (permalink)
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Default Re: Ammonia issue

Since these threads are essentially duplicates, I have merged them to reduce confusion.
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