Rad, thanks for the info on Vetiver grass. I think I am going to try rice for the first test run since I found rice seed before Vetiver seed.
PaPond, one of the reasons I am planting the bio filter is to eliminate nutrients from the water. So far everything is running smoothly, with the flow through and I was able to cut down on the water flowing through the system. I feed twice a day by hand until the fish lose interest, although the perch are picky eaters and there is a lot more wasted pellets than in the trout tank.
The heater has been great for the perch. They are definitely more active at 60 degrees than 55. Since I was able to turn down the water coming in the system the heater has been able to keep the temps warmer.
