Today I got my used hex 20 gallon finally. And it looks like it will need to be resealed. Some of the silicone on the inside is peeling a little, and even if it holds water now I don't want to risk a leak later. I have never resealed a tank before... What do I do?
I have plenty of razor blades and I know which silicone to buy (GE type 1, non mildew resistant - windows and doors, I think) but other than that I am a bit clueless here. Help me out!