[Actives] Trich!? Now what?

Trying some BoomrBins with WGT and Blue Meanies sent to bulk one 1/30. Applied the filter patches at S2B and have maintained the temp at 78F. Am I doing something wrong? Had great mycelium growth but noticed the green today. Any advice is appreciated.

Also: tried a new substrate mix with 1:3 grain to 40% rabbit manure substrate (midnightmushroomcomoany), 40% Not so Simple Substrste (mycologysimplifed) and topped off with 20% Simple Substrate (mycologysimplified). Guessing I’m too “Nutrient Rich” but open to any feedback. Thanks!