Join Date: Apr 2013
Location: Orange County, CA
4" substrate, having major issues with nitrates rising and bubbles
Basically what the title says, I have 1.5"-2" layer of soil with 2"-2.5" layer of sand on top. My nitrates are very high and today when I got home I saw 2 large bubbles rise from the sand. After examining the tank I saw 3-4 areas where it looks like the sand collapsed, I'm guessing from air being released?
Anyways, what is the best way to solve this? Looking back I wish I did a 1" layer of soil, with 1.5"-2" cap. I'd rather not tear down my tank but if its absolutely necessary I will