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post #1 of 6 (permalink) Old 07-25-2005, 10:53 PM Thread Starter
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Silicone!?

How to i know if the silicone is safe or not to use it in an aquarium?
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post #2 of 6 (permalink) Old 07-25-2005, 11:30 PM
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If it says anything about being for "kitchen & bath," and/or talks about anti-fungus or anti-mildew, then don't use it. It's these chemicals that kill aquatic life, and kitchen&bath silicone is guarenteed to have it.

If you've read everything on the packaging and never saw any mention of those things, then you'll probably be ok, since they'd be sure to boast about any mildew/mold resistance it has. If you don't wanna take the risk, then buy some that's made for aquaria. Same stuff, but at least you'll be SURE that it's safe.

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I'm sure a lot of people on here can tell you which specific brands/types they've used without problems.
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post #3 of 6 (permalink) Old 07-25-2005, 11:42 PM
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GE Silicone I or II Window and Door worked for me without any problems for small repairs...

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post #4 of 6 (permalink) Old 08-07-2005, 11:35 PM
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If it says anything about being for "kitchen & bath," and/or talks about anti-fungus or anti-mildew, then don't use it. It's these chemicals that kill aquatic life, and kitchen&bath silicone is guarenteed to have it.
Are you positive that this type will kill aquatic life??? I just used GE I Kitchen&Bath, GE II Kitchen&Bath said "not for aquaruim use," but GE I did not say this but it says "mildew resistant". It's been in my tank for 3 days with no problems yet... My fish are fine and so are my plants. Should I peel all the sillicone off my tank asap? I really don't want to... this sucks
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post #5 of 6 (permalink) Old 08-08-2005, 12:29 AM
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3 days isn't long and it will probably just take time to leach into the water. Even if it doesn't kill your fish, think of what it would do you your bio-filtration. Don't know how long it takes to kill, or just how bad it is, but no... you don't want it in the tank. I know it means a lot of work for you, but I'd be getting the fish out and scraping it off. Sorry.

Plants are gone, but my 33gal and I are back after a long hiatus.
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post #6 of 6 (permalink) Old 08-08-2005, 04:18 AM
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GE Silicone I - 100% silicone rubber sealant - Clear
For window and door

It mentions nothing about being mildew resistant, unless they've very recently changed the formula. GE Silicone II does, besides saying " not for aquarium use".

I use copious amounts of GE Silicone I in aquariums and have had no issues.

"Good judgment is the result of experience, experience is the result of bad judgment." --Mark Twain
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