So if the X came by, then antifreeze is recommended??

The article I saw the guy used a screen on the outlet (above the shower head) and a screen around the fan on the intake. This cut his coolant loss immensely. I guess with a high powered fan, it ends up blowing all the coolant out. I think I will stick with a 80mm chassis fan.
IYHO what temps should I consider "good" for a H20 setup no peltier?
I'm sitting at a warm 25C ambient.
My system generic air cooled see's 25MB 39CPU at an idle, 27MB 50CPU full load.
A7V133 Duron 800 @ 1072
I guess it all depends on the setup, but I need some motivation here.......
Thanks