A good sealant?

[Aquattro]

Originally Posted by Kraken

The GE Silicone I - Window ver has no mold inhibitor in it. I have used it for my reef and I have had no issues.

I've always used this as well, except last time, everything in the tank died. Someone posted in another thread that after contacting GE, it turns out that they changed the formula for this product. So while you might get lucky and buy older stock off the shelf, for me, I'll just use the GE 1200 from now on.