RichardinMA
Non-member
I'm really surprised the Kent Tech M did not work either. I had patches of Bryopsis that my sea hare would not take care of so shot my Mag up to ~2500, maybe more. Within three days it was turning white and then fish and snails started eating it. I did not do a gradual increase like others have suggested and I had no issues whatsoever. In fact, I would use a large pipette and squirt the concentrated Tech M onto the Bryopsis and it would cascade down through my Acros and they would not have the slightest polyp reaction. It has been a couple months and things are still clean.
Bryopsis is not as nutrient limited as some other algaes in that reduction of nutrient does not make it disappear, it just greatly reduces the growth rate. If you have lots of Bryopsis, then you have lots of nutrient. It is not going to show up on a test because the Bryopsis is consuming it as fast as it is being produced, the same way Nitrosomonas and Nitrobacter bacteria are consuming other waste resulting in "0" ammonia and nitrite readings. The only way you would see the true levels is if you could magically remove every speck of algae from the tank and then test in a couple days, after nothing has consumed it.
I run a fair amount of phosphate reducing media so only get a slight film of algae on my glass every few days. The result is that there is very little chance of the Bryopsis or other pest algaes from coming back. The trade off is that my macroalgae suffers due to the lack of nutrient. It is all a balancing act. Once Byropsis is there you need to physically remove it, via mechanical or chemical means, and then also remove the nutrient that is feeding it and allowing it to rebound. It is a major PIA and I wish you luck and hope you do not have to to a tear-down.
Bryopsis is not as nutrient limited as some other algaes in that reduction of nutrient does not make it disappear, it just greatly reduces the growth rate. If you have lots of Bryopsis, then you have lots of nutrient. It is not going to show up on a test because the Bryopsis is consuming it as fast as it is being produced, the same way Nitrosomonas and Nitrobacter bacteria are consuming other waste resulting in "0" ammonia and nitrite readings. The only way you would see the true levels is if you could magically remove every speck of algae from the tank and then test in a couple days, after nothing has consumed it.
I run a fair amount of phosphate reducing media so only get a slight film of algae on my glass every few days. The result is that there is very little chance of the Bryopsis or other pest algaes from coming back. The trade off is that my macroalgae suffers due to the lack of nutrient. It is all a balancing act. Once Byropsis is there you need to physically remove it, via mechanical or chemical means, and then also remove the nutrient that is feeding it and allowing it to rebound. It is a major PIA and I wish you luck and hope you do not have to to a tear-down.









