Yup, using AS with PS and running it on the controller. Water is approximately pH 6.7 with a KH of 2 to start out with after a water change. Over the course of the week, the pH controller kicks in and dumps co2 into the tank.
Used the pH controller to drop it to 6.2 and used the controller to drop it even further. I'm currently running the tank at pH 5.8 now with no harm to either the fish (altums, rummynoses, yellow tail congos, otos, dwarf crays, and various plecos) or plants.
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Eric
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