Interesting...I moved Luwidgea repens from my high tech tank to my zero tech shrimp bowl, and the growth is stunt but healthy. The bowl receives afternoon sunlight from the window. At the peak of sunlight, CO2 is estimated to be 0.1 ppm as reflected by pH rise from 7.4 to 8.8 in kH4 water. Low light Anubias and Java fern did worst and wouldn’t even survive. My situation is not the norm as I moved plants from high tech to extreme high light, CO2 limited situation.
It’s not my personal experience, but I’ve read that aquarists experienced bba outbreak after running out of CO2 for a few days. But I’ve never seen bba in my shrimp bowl after transfer of plants from high tech to zero tech, but my shrimp bowl is a special situation.
The 1.4 rise of pH is not crazy, as it has been observed in natural and eutrophic lakes in high noon due to CO2 depletion from photosynthesis.Interesting...
How did you get to that 0.1ppm number? The equation I see as being the "latest" gives a slightly different answer.
Not that those equations/charts are a good depictions of co2 concentrations as they have to assume many things which aren't necessarily true in real aquariums.
And that's crazy that you are seeing a 1.4 increase in pH! I may have to place one of my bowls out into the sun and see what happens.
Sent from my Pixel 3 XL using Tapatalk
Hmm...The 1.4 rise of pH is not crazy, as it has been observed in natural and eutrophic lakes in high noon due to CO2 depletion from photosynthesis.
The 0.1 ppm is a rough estimate due to interference from other non carbonic acid and imprecision of measuring kH and pH. but it is indicative of CO2 limitation.