Do you find mosquitoes annoying? Not only can they be quite irritating, but they also carry many deadly diseases. One method to control these diseases is to control the mosquito populations. But we have to know more about them – how many there are, where they are, their mating behavior, etc. To do this, researchers most commonly use the mark-release-recapture technique. Current mosquito markers have some downsides, because they can change the mosquitoes’ behavior. This is why our research attempted to mark Anopheles mosquitoes with two dyes: rhodamine B and uranine. We found that both dyes are suitable for marking and tracking mosquitos.