I have been working on my tank for almost a week. Every time I do a reading, my nitrates are high. Still no ammonia. And everything else fine (chlorine, ph, nitrites) Everything I read online says the ammonia comes first, then the nitrates and once a 0 reading on both you're done. Any reason why I am having a nitrate issue? Is this normal? I've been doing 2X daily 50% water changes, using Seachem Prime and Tetra Easy Balance plus. Any suggestions or is this just normal? Thanks!