The GE 1200 is stronger, but maybe overkill for a sump. I think the "do not use for tanks" statement is more a liability issue. Half the silicone I've used has had that warning. If it's 100% silicone without mildew inhibitors, you're good.
That is correct with GE (100% silicone) I them and they told me aquarium safe but they were not liable for aquariums falling apart and associated damage.
10-13-2010, 06:22 PM
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