2 beds: 1 wicking w/ continuous flow-through, 1 flood/drain.
3 tanks: tall 30gal 'aqualung' w/ water plants overflows to 55gal fish tank w/ koi overflows to 20gal sump.
Have wild crayfish and mosquito fish in all the tanks.

This is a CHOP2 system. Pump in sump feeds wicking bed + the tall tank on the left + the flood/drain bed just off the left railing.

Wicking bed overflows into the tall tank as well. However, the flood/drain bed drains directly back into the sump via the white pvc pipe.