Two 5 L cyanobacterial-spiked water samples were coagulated in 5 L gator jars (see Section 2.3 above) and the flocs allowed to settle for 15 min, after which time the supernatant was decanted. The remaining sludge in the two samples was combined into a single gator jar and 5 L of lagoon supernatant (sampled from the full-scale WTP) was added to the cyanobacterial-laden sludge. Samples were taken from the supernatant at regular intervals to determine cell counts and metabolite concentrations. In addition, samples were also taken from the sludge to determine cell viability.