Is the spray paint going to keep the water from seeping in and swelling the wood?I didn't know you were using rattle can to paint it. It might be a lot cheaper to get a gallon of kilz and brush it on. It's going to take a lot of spray paint to seal the wood from moisture. Kils will offer a great sealant as well as a mold resistor.
Billy,
I agree with you to a point, spray paint is not ideal and no it wont provide a good seal, however we're talking about a 29 gallon tank. As long as derrick is careful and keep spillage to a minimum, he's not going to have any problems. There's not going to be that much evap to cause a concern.
How many 2X4's did you end up using? Is the stand pretty heavy?
use a razor blade and a water/white vinegar solution. Some people use the vinegar as a carbon source for nutrient export in their tanks so it's completely harmless and won't cause any problems.
Although, with what little you have there you can probably just use warm water ant a razor blade.
Here's what I propose: before assembly, paint only one side of each piece of glass (the side that's going to be facing the inside), tape all the way around the glass so that only the one side gets paint. let it dry and then use the silicone to adhere the pieces together (at 90 degree angles) inside the tank, ensuring that you get good adhesion inside and outside of the C2C, paying careful attention to the outside as that has to look cosmetically pleasing to the eye.