The short answer is: when the water temps are somewhere between 62 and 80 degrees Fahrenheit...give or take. But that is not the only factor...
Gardner has a few different marker floats on the market, and each has a slightly different set of benefits. The Deluxe Marker float is a classic take on the marker float: balsa wood construction and the “pencil” design. It is available in two sizes, with the smaller size being well suited to most conditions and …