No, it would be different. Kandrona is emitted by the Yeerk's star. Its a particle with a mass I think, just high energy. All matter technically is a wave. Light is pure energy, but its also a particle it just doesn't have mass. So anti-sunlight is possible, its just not anti-sunlight its regular sunlight.
If we assume Kandrona has a mass however, the problem becomes slightly easier. If kandrona has a mass then it has to have an anti-particle that will annihilate it upon interaction. This is seen in all particles. So if Ax were to somehow able to create an anti-kandrona generator he could conceivably pump it into the yeerk pool, which concentrates kandrona and it would cancel it out making the yeerk pool into nothing more than a slushy pool of crap.