Hoe much substrate do you have? I would find it hard to change all of it that often as mine have a good 5 or 6 inches of it. Its a big Tupperware tub, about 3' by 18" and about 2' tall so its deep enough for it.
Still I'm thinking of doing that and replacing with just baked top soil instead of the sand/top soil I have right now. How much is enough so that I can actually change it more often?
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