Hey guys and Gals! So I built my stand for my 200 deep dimension tank out of 2x6 lumber and was very careful to ensure the tank was level and that there was no gaps between the stand and the base of the tank. Unfortunately after about 3-4 weeks of being up, the 2x6 that runs across the back of the tank has shrunk causing there to be about a 1/16 to 1/8 inch gap over about 2 and a half foot of the tank. The the corners are still tight but start about 2 inches in from the left and going right this gap has opened up. What do you think. Has anyone else had this happen?