Hi guys, I purchased some NemaKnights after seeing them mentioned on Reddit. I have a fungus gnat problem that has unfortunately spread through my house plants and has been around for at least 3-4 months now :(.

Wondering on anyone's experience with NemaKnights specifically? Does anyone know how to test to see if they're still "alive"? It's been very hot here and they've been sitting at room temp, which is about 75 here right now. I received them a week or two ago and just moved them to the fridge. But I wanted to know if I killed them! NemaKnights in particular are in some sort of 'slow release' capsule (not sure if other beneficial nematode brands do this).

Also any other tips with using them or things you wish you would have known? I think the gnats are causing a few of my favourite plants to become sickly and unhappy and I want to get rid of these buggers!!