I HAVE A 40 GALLON TANK WITH 4 GOLDFISH ( MAKA , TRAKA , DAKA , SAKA ) SMALLEST 3 INCH LARGEST 6 INCH & A BRISTLENOSE (NOO NOO ) FOR THE ALGAE. I'VE HAD THEM NOW FOR 3 YRS & GREW THEM MYSELF FROM SRATCH I'VE BEEN USING GROWETH FOOD AT THE RITE TIME OF YEAR & I'M CURRENTLY USING A HIGH PROTEIN...