Sorry, I meant negative ions, which is for smell. Note to self, don't smoke before posting.
Feek Reviewed by Feek on . Waterfall creates co2 for plants? Will the water fall created by those aquarium filters create co2 that the plants need? If it does then maybe its a good idea to have an intake fan from the waterfall onto the plants without the need of a co2 generator. Any inputs? Rating: 5