Well, I certainly know that high light, lots of ferts, and CO2 are not the only way to go also
FYI, about 60% of my tanks are non CO2.
The method she describes works, I've improved on it and found the general rates of plant uptake.
I use onyx sand and peat/leonardite for the substrates, this is less messy and adds Ca, Fe and Mg well. It also cycles fish waste better than soil/sand substrates by having more useable surface area.
Dosing a little KH2PO4/SeaChem Equilibrium once every 1-2 weeks really improves the growth. If the plants start to get any holes in the leaves, add a little KNO3.
Adding the ferts is no different than addin gthe fish food, both are ferts.
One is for fish, the other is for plants.
They need fed different things than the fish for optimal growth.
Some hardy plants can handle fish food only(but the type of food matters also) and do well, okay etc.
But adding the ferts I suggested will improve the number of plants that will do well in a non CO2 tank as well as any existing plants. Sop even if you use soil that's years old and depleted, this will work well for you also.
The fert's are cheap and adding something once a week or two is easy.
Regards,
Tom Barr
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