If people have not had success with the Oxydator, my guess is they are not using a strong enough solution of H2O2. I use 8.75% Food Grade H2O2 not readily available. It works just fine. The 3% available at drug stores is not strong enough.
Another problem I found with people that say the Oxydator doesn't work is they expect overnight results and are disappointed that in a day or two the Bryopsis is still present. It takes time to eliminate the source of the nutrient the Bryopsis is fueled by (that's what the Oxydator does). Of course there are people that set the Oxydator up and never refill it. That defeats the effectiveness, too. I'm using six of them in my systems and Bryopsis is now nonexistent as is hair algae a thing of the past.
Another problem I found with people that say the Oxydator doesn't work is they expect overnight results and are disappointed that in a day or two the Bryopsis is still present. It takes time to eliminate the source of the nutrient the Bryopsis is fueled by (that's what the Oxydator does). Of course there are people that set the Oxydator up and never refill it. That defeats the effectiveness, too. I'm using six of them in my systems and Bryopsis is now nonexistent as is hair algae a thing of the past.