Open plant “bottles”?

6:06 pm in Getting Started, questions, Seeking Advice by Nicholas Stephan

Hi,

I’m brand new to this forum, window farms, and hydroponics, so forgive me if I ask a lot of stupid questions up front.

First stupid question:

In the v3 DIY instructions it says to use whole bottles for the plants, with a “plant hole” cut out of the side, creating something of a half dome around the plant. It then says to direct water from above, using a “cap flap”, away from the plant hole. Is all that to limit evaporation, create a greenhouse, or just simply to make daisy chaining the bottles together easier?

I’m thinking of deviating from the instructions and having open containers for the plants, so something more like your average hanging potted plant. Is this a horrible idea? And if so, why?

Thanks