I WAS HOPING SOMEONE COULD TELL ME, I SUSPECT IT WAS THE FACT THAT I LOST 2 TANKS IN 2 DAYS PLUS ADDING TOO MANY FISHES TOO QUICKLY. i BOUGHT AN ECHO AQUALISER AND THOUGHT THAT WOULD SORT OUT THE TROUBLE, THEN THE CYCLE STARTED AMMONIA LEVELS INCREASED, NEXT NITRITE THE THINGS I BOUGHT AT THE...