P. viridans Sling Care

[Ravenpuffprongs]

I got two incredibly tiny P. viridans slings today, and am wondering how I should house them at this size. They are approximately the size of flightless fruitflies, and are currently being fed such. Photos of the current setups from the breeder are attached, however I am worried they won't fully thrive in them. Any tips? This is my first time caring for true spiders, however I do keep and work with multiple tarantula and scorpion species, so I have arachnid experience. Thanks in advance!