Hey, i currently have an internal filter that came with my tank. I hate the look of it and getting annoyed with how bad it works. I just recently got another tank and put my group of tiger barbs in there. Now i have a tank with just a BN plec. Now i want a comunity tank and work is on it way but im not sure i want to use the same filter. I want an external thats not to expensive and does a good job. The filter i got with my tank personally i didnt think it was too great and although the water quality was good it didnt seem to clean up the fish poo. Now would an external be powerfull enough to clean the water and does it suck up the fish poo. Isit because im using sand as a substrate? not sure what the filter is called but my tank is a 95 litre. Is my tank even big enough for an external or really should an internal be good enough?