Hi fellow beekeepers, I'm in need of some help/advice. I have a nuc that I purchased 4 weeks ago. The hive started off very active but I noticed a rapid decline in their activity. Initially I thought mites and began treatment with apivar strips last week. I did a more thorough inspection this week and found a ton of larvae on the bottom screen. My queens brood pattern is scattered and I thought maybe AFB so I did the match test and nothing was stringing out. I did notice a few hive beetles so I have added two beetle blasters and did the swiffer pad trick that has worked on my other hive. Here are some pictures.... Any guidance would be appreciated. Thanks in advance!