Filled the tank last night, let the water changes begin.
Yeah, I filled my 12 gallon Fluval Edge on Sunday with aqua soil in it, and it's releasing enough ammonia to cycle the tank. I've been doing 50% water changes daily, and today just before the change the water was around 3-4ppm ammonia. It also lowered my ph from 7.4 tap (very hard water) to 6.8 in the tank.
Also, I love your scape. Can't wait to see it fill in under water.