Father Fish Recommends Gravel As A Capping Layer In His Planted Tanks! My full Walstad Vs Father Fish Method Comparison - https://glassboxdiaries.com/walstad-vs-father-fish/ I want to quickly highlight how, after recommending sand for years, Father Fish is gradually shifting toward gravel. I receive three or four comments like this every month from Father Fish followers, and unfortunately, they often don’t fully understand the details they’re referring to. If you watch the video on Father Fish’s