Hey guys, I wanted a cheaper method to start my first tank and decided to use dirt. In hindsight I should have done much more research but very late now, I put load of dirt in, (more in the back because I wanted that slope 😕 )Not only is there lots of dirt, but my gravel cap is thin. This tank is about 4 months old, I have fish and shrimp in the tank, and also established plants. I can’t get afford more plants but my nitrates are high even after constant water changes. Any advice ? Thanks xx