Hi All
When you make the mixture for the Hummingbirds, the 4:1 water/sugar ratio works fine, but be sure to boil the water before you add the sugar.
Keeps the bacteria down = which could kill the Hummingbirds.
Really makes no difference if the liquid is red, but the birds will be attracted to red colors in the area. If your feeder is red you should get lots of visitors.
Be sure to keep your feeder by a window. Trust me, you will get lots of enjoyment!
Mark