So I use to be a non-planted tank gravel guy. Every few weeks I'd vaccum the gravel as part of my regular maintainence. Now that I've had my tank set up for a while and Eco-Complete as my substrate, how do I maintain it??? Do I need to vaccum it occasionally? Is it okay to disrupt the substrate?? Also, how does one avoid toxic air pocket build-up??? Can anyone please shine some light on this subject for me?