my suggestion is patch the hole with a piece of glass and some aquarium silicone,and buy a hang on filter for one of the ends of the tank.about 120.00 or buy a wet dry filter with a sump,a pump,and hang it on the end of the tank,cost about 250.00.you decide.i would go with the wet dry and a pump but purchase a pump big enough to accomadate a protein skimmer you will need about three months after setup.good luck