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Discussion Starter · #24 ·
Little is known about this issue in aquatic plants. Some speculate availability of nutrients etc, most all water logged substrates tend to move to neutrality over time(weeks). I do not think that plays a large role.

Water column's relationship with KH seems to be a larger factor, and stomatal and cuticle functioning also play a role in uptake by the leaves, stem.

CO2 also seems to be an issue for many folks still.
30ppm may fully staurate a certain species of Myriophyllum, but other plants that normally do not live all year in submersed conditions may not.

I use the CO2 mist for this reason.

But the issue is something I'll address more in the BarrReport in the coming months.

Regards,
Tom Barr
 
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