Sump Silicone?

I use aquarium grade silicone. You'll hear some people say GE Silicone I since it doesn't have the mildewcide but GE specifically states on the tube & their PI sheet that it is NOT intended for complete water immersion. For a few $$ more I'd rather be safe than sorry.
 
Wow....there's a ton of people out there, myself included, who have used it plenty! Gonna research this now.
 
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