Using tank as freshwater after ferret or rodent used - The Planted Tank Forum
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post #1 of 5 (permalink) Old 11-07-2015, 08:27 PM Thread Starter
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Using tank as freshwater after ferret or rodent used

I am looking at a large used tank, but it appears to of housed large rodents. It is an acrylic tank and I am concerned with ammonia levels that may have been absorbed and would transfer to a freshwater tank. Anyone have knowledge in this area?
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post #2 of 5 (permalink) Old 11-07-2015, 11:58 PM
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Knowledge, no, but my thoughts are this:

Soak the tank and maybe add a little chlorine to the water. Rinse it out and let it set for a few days. Test it for ammonia levels.

I suspect if you do a fishless cycle with something like Tetra SafeStart Plus it is going to take care of any residual ammonia leaching out of the acrylic.
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post #3 of 5 (permalink) Old 11-08-2015, 01:01 AM
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The chlorine in normal untreated tap water will likely react with any ammonia left but if you wish to be a bit more sure, add a 1/2 cup or so of bleach and it will kill any nasties and then be gone after a rinse and dry. Since we can never be certain what people may have had in used tanks, I like to start off knowing that they are safe. Like washing my plate before eating, there may not be anything there but I feel better KNOWING they are clean when I do it myself.
I once bought a tank that had strange circles in the bottom. A bit of checking and I found it was from oil cans being kept in the empty tank!
While many still fear using bleach, it has the wonderful ability to gas off and blow away, making it really easy to clear once it has done the work.
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post #4 of 5 (permalink) Old 11-11-2015, 02:01 AM
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Ammonia is ammonia so rinse the tank and you'll be fine.

You can always hyper-chlorinate it outside but the urine will help the break in especially if you get used soil.


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post #5 of 5 (permalink) Old 11-11-2015, 04:14 PM
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If it were a glass tank I'd say pass and keep looking. Besides the potential waste from whatever was in there animals tend to pick/scratch at the silicone; but not an issue i suppose with an acrylic tank. Hows the clarity? I can imagine quite a hazy mess if whatever was in there had some claws.

I'd still be hesitant to bother with this unless its really the deal of a lifetime!

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Curator of an ever growing fishroom that currently houses 30 different tanks. Most full of at least water....some even have fish!
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