it's an interesting point many have had issues with the epoxy due to it's intolerance to flexing, one here had an issue every time he had to do maintenance in the tank, the wood would flex, the epoxy would not and it would cause a leak; liquid rubber worked for him as well.Billy_m24;4443164; said:I agree with the other on it nice job, like you I wonder how many are still up and running. No leaks clear water ect. I had a heck of time sealing mine. epoxy paint leaked after only a day, ugy drylock lasted about a week, ames blue max worked for me. 77x30x36 my tank has been up for 2 months now no leak water crystal clear.