yes I wasnt mentioning peroxide as a maybe, agreed its rather awesome. I know people want their all natural approach, but in the end, they usually come crawling in to one of the p threads out of desperation.
p was touted as inherently destructive for too long. if you ever want to see a massive scale application of it on hundreds of reef tanks since 2011 google this "pest algae challenge thread"
imagine how easy plants would be to fix if we apply this to delicate brain corals and every other coral in the system.
I referenced a thread active right now at TPT in my reefcentral thread on P. you guys do great fw work with it, skip over to the algae forum and see their peroxide work. between the two threads, you can see we beat BBA all the time with it. funny you mention the hallmark color change, this happens in marine settings when you treat rhodophyta species with p, they turn hallmark bright pink and thats the harbinger of doom for them while nontargets are preserved so well we can make a sixty pager out of it.
peroxide use is so controversial in marine systems (whereas you guys in fw know it has uses documented back to the 60s and before) Ive lost very long standing forum accounts over chemistry battles that ensued (in the end, the man with the cancel membership button wins lol)
its just an effective cheat. you imported that strain into your tank (marimo balls anyone) and it simply found a niche it could exploit with your varying parameters etc.
p is good to knock out biomass targets, while preserving biofilters.
I know of no fish intolerant of it, marine fish included. every fish Ive ever seen in a reef tank tolerated it well while we attacked X invader
it doesnt harm filter bacteria in the ways it used to be stated it would. we simply destroyed that notion in the challenge thread. constant ammonia testing feedback, across test kits, across reef tanks, even after over doses of a terrible proportion. your filter bacteria are nearly immune to peroxide use (in our tanks) this includes fw.
one would think peroxide just -has- to kill aerobic filter bacteria, or reducing ones for degassing nitrate out of reef systems, its not so. threads hold all the anecdote we need after 60 pages of decently solid predictions I might add
we talked about reasons its postulated that its not killing our beds.
you dose after -heavy- effort to clip your leaves you can stand to clip, thumb remove where you can stand to do it.
manual removal factors into removing the eutrophication we let explode off one single brushy area. its the cost of hesitation man.
after tank is as clean as it can be from your elbow grease and pruning and scraping off the glass with razors, work, you underwater spot inject the spots one at a time with your tank full using one of the myriad capture techniques outlined in that giant marine thread. (saran wrap, pill bottles etc)
sure its a crap ton of reading. you want your tank cleaned ?
might be worth it man. RCS incidentally aren't on the list of sensitives, Ive actually put too much in my breeding tank before to no harm. genetic susceptibles like the lysmata shrimp are quickly evident. there is a contrasting line of tolerance we are discovering using constant feedback in active peroxide threads.
somewhere out there, an elusive mix exists that can naturally cure your tank of this invader in short time. I dont know what that combo is or I wouldnt have wasted 4 yrs on peroxide work lol