Also try to coat over very well any existing that you may have left (try I get it all if you can) bc it won't seal well to existing silicone. Good luck and make sure to let it dry thoroughly, and water test outside or somewhere it can get wet! Also a week or so will give you true results. Seems like overkill but it's going to be full forever so a week will give you better results IMO
. I learned the hard way and put around 50+ gallons on my wife's wood floors. Not a good day. A pissed off wife in this hobby is really bad, especially when trying to set up a new tank!