Looks like a classic brett pellicle to me.
as has been suggested a million times on HBT... DO NOT... DO NOT TOSS IT!!!
Unless you REALLY need the fermenter space, I would just let it go for a couple of months and let the brett eat away at the sugars.
Two things to think about though... 1) decent chance your pail is screwed. Once brett gets into the tiny scratches of a plastic pail, it probably isn't coming out, no matter what you do to it short of melting it down. 2) Unless you bottle it and chill it, and keep it very chilled, the brett will eat all of the sugar it can.
brett eating every sugar in a bottle = bottle bombs.
My recommendation is to let it sit exactly the way it is for a while (another month or two) and taste it. You may not like a brett soured beer, especially a brown, but you won't know until its fermented out a lot more than it has. If you try it when it is down to 1020 or something and you like it, bottle it up, let 'em sit around for a short period of time to carb (2-3 weeks and then maybe testing one) and then when they are carbed, chill ALL of them.... quickly.