Pedals that stack with the EarthQuaker Devices ERQ Aqueduct

Wren and Cuff Box of War Small Foot Fuzz

Run Wren and Cuff Box of War Small Foot Fuzz into that low gain platform and it finally gets some high gain

EarthQuaker Devices Hoof Reaper

Into a low gain tone, EarthQuaker Devices Hoof Reaper brings the fuzzy it's missing

Red Witch Titan

Red Witch Titan's ambient voice goes after EarthQuaker Devices ERQ Aqueduct in the signal chain — it's not there to compete with EarthQuaker Devices ERQ Aqueduct's own modulated character — goes in the amp's FX loop (or last, into a clean amp)

Boss DD-2 Digital Delay

Keep Boss DD-2 Digital Delay after EarthQuaker Devices ERQ Aqueduct in the signal chain, clear of EarthQuaker Devices ERQ Aqueduct's own gain stage — goes in the amp's FX loop (or last, into a clean amp)