I've been cycling 2 tanks. One I started on Feb 4, the second on Feb 10. It took about 10 days before I saw any nitrite and now my nitrite level has been 5+ for atleast 3 weeks, if not more. (Sure wish I had kept a log book). One tank now has tons of nitrate.. the other tank has some, but not as much. Amonia falls to 0 in about 12 hours. Any guesses on how much longer this will take? I'm so sick of looking at empty tanks.