Step 12Other optional steps
First is the algae growth inside the reservoir. Since algae is a plant and plants need the sun to survive, the easiest way to prevent the algae from growing is to wrap the finished bottle with a piece of construction paper or something similar. This blocks the light from penetrating, plus it can be decorated.
And, after prolonged use of these bottles, I have noticed that sometimes the wick will wear out and fall off. It makes sense because cotton is made from plants and plants will decompose. This usually takes a while, however. What I've noticed is that by the time the wick rots off, there are already roots growing down where the cap is. This was easy, since I just removed the cap and let the roots grow down into the water. After all, who needs a wick when you have roots?
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