I'm not going to mention what the experiment is yet, but it has the potential to revolutionise the hobby. I need participants that:
1. Have extra plant trimmings or plantlets. (stem cuttings are fine, number of species doesn't matter.)
2. Own a good water testing kit.(A reliable liquit kit is adequate.)
3. Have a number of jars available, and a well-lit or sunny window to keep them in.
4. Have the time and motivation to participate in an experiment that values accuracy. (After initial setup, 5-15 minutes per week at the most for at least a month, preferably 3. At the conclusion, maybe a half hour to process the data.)
A accurate scale (that can measure mg) or a high quality camera is required. Both preferred.
If anyone has a biology, microbiology, or chemistry background, they are welcome to follow the experiment. (and possibly attempt to explain any weird results we may get)
If you have any such background, please pm me. I willbe glad to discuss the parameters with you.
Please post here if interested.
(And before you try to guess, it is not related to soil or substrates.)