Hello, I have 2,000+ red wigglers & 1,000 ENC’s . The first video I saw on worm farming suggested I use a mix of topsoil, leaves, newspaper and cardboard for bedding, which I did. Now that I’m learning more,it doesn’t seem like I should be using much top soil. Currently 40% of my bin is topsoil. Let me know your thoughts on that please. TIA!