isn't this the strongest example of a chrysophytes invasion ever posted in the history of hd reefing invasion posts
quit playin' around and buy some 35% peroxide and eye protection and lets play hardba
the whole tank including the sandbed would be rinsed, scraped, flipped and cleaned per the skip cycle tank cleaning threads, so that when reassembled without a recycle, the tank is free of the invader except for microscopic leftovers we cannot see due to the excellence of takedown cleaning.
once fully cleaned, before putting rocks back in, dump some 15% peroxide you diluted and made using distilled water and 35% P right across all cleaned rocks let set in air about 3 mins. rinse off rocks with clean new saltwater. put back together the whole tank with a 100% water change and prepare to reacclimate fish from their holding container.
rinse that sandbed out with hot blasting tap water, then saltwater at the end, per our sand rinse thread.
reassemble the tank in the rinsed, and peroxided condition and if they start to come back buy a UV sterilizer off
amazon that is rated for double your tank, and install the UV when the tank is made free again of any returning chrysos. due to not being anchored these aren't the worst invaders we can get. you've been skipping the sterilization step either provided by UV or the peroxide and massive cleaning.
I bet the sandbed if appli here harbors lots of chryso, for rebounds after rocks are topically cleaned but not sterilized for the invader. none of this w cause a cycle, its how I handle my pico on a normal Tuesday./
