My nitrites are getting high within 24 hours. 2.0 to 5.0 ppm the last couple of days. Ive been doing 50% to 75% wc everyday for week. Sometimes 2x a day when time allows. In the process of doing a 75% wc right now. How long does this nitrite phase last? I feel like im moving in the right direction and doing everything right. 6 zebra danios are doing very well, eating everything i feed them. Praying for patience and dedication to see it thru till the end of the cycle.