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Old 10-11-2020, 04:25 PM   #1
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Crack in old aquarium

Iím setting up my old aquarium and found a really small crack on the bottom edge.

I want to seal it with silicone. I read that silicone 1 is the best one to use.

The thing is that on the packaging it says
ď7-year mold-freeĒ and I was wondering if it was safe to use.

Iíve attached a picture. Click image for larger version

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Old 10-13-2020, 12:03 AM   #2
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You can not use any of the silicone with stuff that is 'mold free'. That stuff will leach into the water column. If I remember correctly, it'll basically uncycle your tank.

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Old 10-13-2020, 12:34 AM   #3
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I personally sealed 2 aquariums with GE 100% Silicone and one of the aquariums has been up and running going on 4 yrs with no issues. Just make sure it has no anti mold inhibitors in it.
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