It is fine to do so. However, I would recommend trying to find this tank, if you don't already have a 10 gallon:
If you remove the hood, rim is not there. Pretty cool. Finished much better than a standard 10 gallon on top, will save you a few hours, depending on how much of a perfectionist you are. I think you can only buy the kit, not the tank alone, I may be wrong on that. Far from ADA or even Mr. Aqua but silicone is better than a standard 10 gallon on the sides, top has finished edges, etc. Black silicone though.