I’ve been anchoring all my plants under my gravel and having little to no luck I had one anacharis elodea that’s been stable since the beginning and has always stayed in place and today I found the whole thing floating at the top. It was just the straw that broke the camels back I’m so aggravated. Any tips on how to keep my plants in the gravel? I’m trying to grow a root system here but that’s never going to happen at this point. I’ve tried putting rocks on top of them that doesn’t seem to work.