I started my cycle 21 days ago and used a raw shrimp which is now a nice milky white disgusting mess. My ammonia got up a little darker than the 2ppm color with2 different test kits , nitrite up to .2 ppm and now its all at zero including the nitrate!!! Did I do something wrong? Ps my tank is a 110 with 29g refuge . I have about 80 lbs live sand and 90 lbs of cured live rock in the dt and about 5 lbs of crushd lr in refuge with a 3 inch sandbed. Thankis for the help in advance