Planted Tank Obsessed
Join Date: Oct 2006
Location: Cocoa Beach, FL!
Ive built and re-built enough fish tanks to honestly tell you that just because GE RTV108 doesn't say anything about being fish safe, doesn't mean that it's not. Just make sure that the thicker the bead that you use, the longer you wait before adding water. Once it's completely dry, it will be safe for any and all of your fish.
The SCS1200 that is mentioned in Scully's post is available to the consumer, however, getting it in small portions is difficult to achieve. I am currently in the process of re-building a 230 gallon tank that was left for dead on the side of the road, and I will be using the RTV108.
I know this doesn't answer your question. Just letting you know that you may not need that 1200 series silicone.
I woke up one morning and realized my living room turned into a fish store!!! HELP!!!!