Originally Posted by manbeast
I understand the concept but what I mean is the ambient moisture from evaporation whether you have a lid or not will still be enough moisture to support the unwanted growth of mold or mildew, my apologies for not being more clear in my first response
Lol its ok you don't have to apologize I started this thread so get ideas on the best ways to go about this, good or bad I accept and appreciate the criticism. Ok back to topic, hmm... I guess I could put some kind of sealant on it but what kind? A deck wood sealant would work because its waterproof but I would have to make sure I have a lid on the tank. Keep in mind I have not started this project yet kinda want to work out the kinks first.