I was wondering do you guys deep siphon your sand or just try to siphon the top? I heard conflicting information. Siphoning the sand releases trapped garbage in the sand bed and gets released into tank and makes nitrates and other bad stuff go up. My tank is 8 months old. Sandbed is only about more or less 2 inches. Everytime I have tried a deep clean of my sandbed days later my Nitrates sky rocket?