Scrub those off there with a stiff brush. You will miss some and they will end up hatching, but better to have fewer to kill later, than more.
Be sure and dip the rack. They can be out on a bender while you are dipping and they get missed. Some guys even transfer tank/containers because they don't want to miss one that was in the water or on the glass.
Be sure and dip the rack. They can be out on a bender while you are dipping and they get missed. Some guys even transfer tank/containers because they don't want to miss one that was in the water or on the glass.



