Hey, I was wondering, do you think that Playsand or Ecocomplete is better for a lowtech setup? I wanna switch from gravel in my 5 gallon. From my experience with Flourite (identical to Eco-Complete basically) and sand, go with playsand. I am, after 15 months, changing back from F to sand due to lack of benefit plus plant issues not present in the sand substrate tanks. Byron.