You will find corixas are found mainly in the margins of stillwaters.
They congregate around weeds and reed beds, where they feed on the bottom on algae and other vegetation.
The corixa will work all year round, but can be at its best in late spring and summer.
The corixa lives at the bottom of stillwaters.
Once its air supply has been used up it will paddle very fast to the surface to collect more air, then rush back down again.