So like most people know petco is going to be having there 1$ per gallon sale and i wanted to get 40 gallon but im wondering if its worth the deal. Should i go and buy the 40 gallon for a doller a gallon and then buy the light and glass top separate? or should i just go to petsmart and get the 40 gallon, light, and glass top all for $104? Now that i think about it if im going to need a light and glass top the $1 per gallon just doesn't sound like a deal since it doesn't come with the light and top. I can see it being a deal at petco if you went with a diy top and light but since im going to buy the light and glass lid is petsmarts 40 gallon a better idea?