Hey guys, i'm new to the forum. I'm 15, and for biology we have to do a project. (No, i'm not going to do some crazy deforming experiment on my BP's. Haha.) And for the project we have to observe something over a span of 2-3 weeks. It also has to involve a controlled factor (Basically, just something in the experiment has to be under your control.) I wanted to do a cool project involving my BP's. I have 3 completely healthy, feeding ones, around 1 and a half feet each. Any suggestions? (Nothing really expensive, please) Thanks in advance!