Hello, so when I checked my water the other day my nitrate ppm was at 40ish so I did a water change its been 2 days now and when I checked the water it was red like high ppm so I put the filiter media back in because I didn’t know what do do because I was treating the tank for disease. So should I wait and see if it doesn’t change what should I do?. Also sorry for poor grammer I just dont know what I should do.