I have been trying a fishless cycle for the first time and not having much luck.I make it through the ammonia spike,and the nitrite spike,but when the nitrites come down to zero,and I do a water change to drop the nitrates,the ammonia and the nitrites go up(1.00 ppm each).I am cycling a 55 gal. tank and I'm putting 1/2 tsp of ammonia in every day(I started with 1 tsp to get the ammonia level up to 4-5 ppm). Any ideas!