Ok I recently purchased a used 120 gallon tank with stand and canopy. And I had to sand down and re stain the stand and canopy. My question is is there a reason why people don't stain the in side of the canopy? Is it bad for the fish? Does it even matter? I just wanna know so I can finish it either way the stand is done for the most part and now all I have to do is the canopy. Any incite will be appreciated.