Plant issues
Hi folks,
It looks like we had great oxygen production initially and it has now dropped off. You added bicarbonate today; if that fails we'll order more plants to make this work for friday. However, that would be more expense than a typical classroom could tolerate, so we need a not in the pitfalls section about that. The other Elodea species was not prone to this problem; however, because it is an invasive species, we can't legally work with it anymore. I'll look into water cress.
Cheers Dmccabe 18:30, 2 February 2009 (UTC)
