The testing probes will then be placed inside the macrophyte's water beaker to take a measurement. The water samples will be taken in intervals of 1 hour until the 4 hours mark, then the next measurement will be taken after 24 hours. Then, the remaining measurements will be taken in intervals of 24 hours, meaning the measurement after the one taken after 24 hours is after 48 hours after the contaminated water has been poured into the beaker. The experiment will last for 3 days (72 hours). The results of the water sample test will be recorded and analyzed to determine the amount of each contaminant that has been filtered by each of the macrophytes.