then a nutrient rich substrate probably isn't the way to go. Look at the Walstad method, using John Innes. Compost is packed with N and P, it also has some control of C02 release to some extent.
http
/theaquariumwiki.com/Walstad_method
have a read of this, some of the statements are a bit dated in the Wiki link, but the main principles are there.
ps the Tannin statement is also wrong lol.
http
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have a read of this, some of the statements are a bit dated in the Wiki link, but the main principles are there.
ps the Tannin statement is also wrong lol.