Hi. My beardie is 6 months old. I alternate feeders and really like phoenix, silkies and butterworms. Phoenix can stay in the container they are shipped in. They are very small and I take out some, sprinkle on a paper towel to get the substrate mostly off (it won't hurt beardie). Then I put them in a tiny dish and reach in her viv and let her take some - then put it down so she sees where they are. If any don't move much or are dark, hold the little dish near a hot light and they will start wiggling. Since they are high in calcium, I usually don't dust, but once in a while you could. Now silkies, I get the container called a POD, it comes with the food inside and they grow and stay in good condition in there. That is kept on my kitchen counter like the phoenix...no refrig. I also have crickets that are alternated - those, of course, I dust. Feed her those in a separate 10 gal tank.........no worry of them hiding under items in her viv. Butterworms are a new feeder I just started. They keep in the frig and info says they last a LONG time - but my Sandy eats them up,so that's no worry. They don't need any food - just hide in the material in shipping container. I read that superworms should only be fed when beardie is over 16 inches long. I won't spend $ on any snack worms, only want all her food to be nutritious.