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How did you get your nutrients under control. I am using a hob and do 25%water changes bi weeklyI tried emerald crabs when I had bubble algae and they also did nothing. Only thing that worked for me was manual removal and getting my nutrients under control. This was a long time ago though. These days, my nutrient levels are too low so I'm battling dinos and cyano all the time. Can't win in this hobby.
Years ago I switched to higher quality fish food (Omega Super Veggie Flakes, good Nori, and a variety of frozen stuff) and coral food (Reef Roids and Red Sea Reef Energy AB+). I do a wet skim so I need to empty my skim cup once a week. In addition to a healthy amount of rock in my DT, I also have about 15 pounds of seaside aquatics biospheres in my sump which really boosted surface area for bacteria. If you're using an HOB, I'm guessing that you don't have a sump and maybe not even a skimmer. If no skimmer, that's the first thing I'd do. And, if you can't do a skimmer, you're only real option is to do that 25% water change once a weekHow did you get your nutrients under control. I am using a hob and do 25%water changes bi weekly
I've had that experience, too, if we're talking about the same species of halymenia. Vibrant definitely killed off the macro in my 4g jar build after I applied as instructed for two weeks. It had no effect, though, on halymenia in my 65g RSM, and I dosed that for months. I did run a skimmer (intermittently) on the RSM, though, and that might have had an impact.Vibrant will, unfortunately, kill the dragons breath algae.![]()
Emeralds have been amazing for me with bubble algae, anecdotally the only two places I ever have had to remove it are on the back of a trochus that hangs on the back wall and on a floating platform on the wall in another tank that they can't reach -I tried emerald crabs when I had bubble algae and they also did nothing. Only thing that worked for me was manual removal and getting my nutrients under control. This was a long time ago though. These days, my nutrient levels are too low so I'm battling dinos and cyano all the time. Can't win in this hobby.

