Hey everyone, I'm new to the site and i just wanted to get some input or advice for my first build. im a little nervous that my build might fail, but am determined to do it anyway. Im only making a 150 gallon tank with a 6 foot length. I will be making my own filters and lighting, but am conflicted on what waterproofing agent, and type of plywood i should be using. Any and all suggestions and bits of advice will be taken to heart, and i appreciate your help. Thanks guys! Let me know what you think.