I just got the TLF phosban 150 reactor for my nano and want to make sure I know what I'm doing before setting it up. I know you're supposed to start with less gfo. The directions say 1g/gallon and I have probably 9-10g taking into acct displacement by live rock. I have a sensitive scale to measure it. Should I start with half of that amount? Also, with such a small amount I'm assuming that the water flow should be kept pretty low so it won't tumble out of control. Any help would be appreciated!