electrobes - good call on the cylindrical carbon, I have had good luck with the Kent, but it always bugged me that it looked "sealed up". I think I will run individual carbon, phosphate and calcium reactors.
I don't know if I will use ozone.
I think I will take the effluent from my calcium reactor and run it through the skimmer. That way I can "blow off" the CO2 and not screw up the ph as easily.
Maybe 3 Kent reactors will do the trick, they are cheap and look like good quality.
I was worried about the RIO Plus at first, $31 pump, must be crap right? But it is the quitest pump I have ever used ( tried a few in my day). I also have figured its only pulling 35 watts and the tank temp was at 75 degrees with no pump to 75.7 degrees with the rio. But I am totally open minded, should I go to an external like a dolphin, iwaki, little giant or ?