I'd just do the DSM, then once you fill, you can use the Excel if you wish, probably will not need it though.
Do this instead: Slowly fill the tank, as long as you have decent circulation, enough floating leaves etc, then you are fine doing it that way
These plants are pretty easy to care for and transitions are pretty easy for them. Think about it, most wetland plants all come from oplaces that are flooded part of the year and thus live below the water,then the water recedes...........then tey start to flower and are left high and dry.
Swords and Crypts both are like this and are stream/river plants with generally higher current. Might need large root structures for daughter plant runners, phyical stress due to current, storage of reserves, and of course when there is no more water and all the nutrients and water MUST come from the sediments.
It does not imply they prefer root uptake, it means they have no other choice.
We can grow both species in flourite and in nutrient rich clay and have similar rates of growth submersed.
You have both nutrients in the water column and the sediment, so you have plenty of wiggle room there. The rest is CO2/light balancing, as well as fish load. SAE's, Amano shrimp etc, might not go well with the betta.
So think about at.
Regards,
Tom Barr
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