At some point I suspect I picked up a frag online and brought in bryopsis. I broke my tank down, scrubbed everything over the course of a day and put in all new sand and rocks. Everything was fine for a few months but my tank is now overgrown and I realized that it provides more hassle than enjoyment. I love my fish and want to get back to enjoying them, so I've got to do something. I'm looking for suggestions on how to proceed. I have two 5 gallon QT that I can keep my YWG, shrimps, clowns and firefish in, but I think my wrasses will need something larger. I was thinking I could find a cheap 20-40 gallon tank for my 4 wrasses or possibly even pay someone to house them for a bit. I'd toss all the rock and sand and then was thinking I would let the tank sit fallow for a period of time with freshwater circulating along with bleach or hydrogen peroxide for maybe a month. Whatever it took to kill this stuff. Has anyone down anything like this before or have experience wiping out an invasive algae? I've been in the hobby for 7 years and this is the only thing that's made me think of quitting. I used to test regularly and nutrients were never a problem. At one point before breaking it down the first time I tried the Kent Tech magnesium but without success.