Researched a little bit. Basically the only "true" way to reduce nitrates is to do water changes. Thats exactly what I did. I just did a 2 g change last Wednesday before I got my hermit crabs and more snails...and my emerald crab. I did a 4 g change tonight...cleaned out the filter...rinsed the intake tube sponge and sponge that's in the filter. Actually cut that sponge in half and put it on the outside of the media basket, right next to the intake tube. I figured a smaller sponge may help reduce the problem. I also rinsed the carbon and phos/nitrate reducer bags. The bottom of the filter had a lot of gunk and at this point I don't wanna take any chances. I tested the water I'm getting from trop...not a trace of nitrates. So its def on my end...Ill test in a few days and see what happens. I want to get these rates down bc I want to add my favorite saltwater fish...the midas blenny.