| Sample | Reads QC |
| S1 – Aerobic seeding sludge | R1 reads; R2 reads; merged reads |
| S2 – Anammox seeding sludge | R1 reads; R2 reads; merged reads |
| S3 – Liquid fraction 15 days after aerobic biofilm formation | R1 reads; R2 reads; merged reads |
| S4 – Liquid fraction 15 days after anammox biofilm formation | R1 reads; R2 reads; merged reads |
| S5 – Aerobic biofilm on GAC | R1 reads; R2 reads; merged reads |
| S6 – Anammox biofilm on GAC | R1 reads; R2 reads; merged reads |