Sand cap for Walstad method
I've been researching if a pool filter sand cap will work for the Walstad method. I read that if one uses a 1" layer of sand it will suffocate the soil, but I'm afraid if i use less than some fish, like my ram will displace some of the sand and make a mess. I dont want to use gravel because I'm not sure fine plants like monte carlo can grow in it (can it?). I monte carlo can grow in gracel than I will use that. What do you you all suggest I do?
Thanks in advance.