Should I use fly floatant on emerger flies when fishing?
Yes and no. If part of your emerger is floating above the meniscus (surface tension) then you will put floatant on the part of the fly that is above the meniscus while keeping the floatant off the part of the fly that is below the surface. Nymphal emergers where they float either in the meniscus or just under the meniscus then floatant is not a good idea. Normally an emerger is fished either on, in or just under the meniscus. Usually small nymphal emergers will naturally float near the surface which is where you want them. However small hatcher emergers,like dry fly adults, require some type of floatant to keep them on the meniscus.