Is it normal to have very high nitrate levels when dosing EI? I've been following a slightly modified EI routine for over 2 years now (I think I actually dose a little bit less than the recommended amounts). In any case, my nitrates are consistently up in the 80-100 ppm range. That's outrageously high, isn't it? But my fish don't seem to mind (not even the otos). My plants grow like mad, and my fish are active and healthy. What's the deal?