You will have to cut the front panel or the back also this will be needed in order to put the tank back together. I build tanks for a aquarium manufacturer company and the way there put together. The sides are put on before the front/back in order to seal the tank properly no way to remove just a side and get the silicone between the panes so it would seal properly. The strength of a tank comes from the silicone thats between the glass. If you need any help feel free to PM me Ill help and give as much info as Im allowed too