Hey there, fellow dragon owners. I've recently purchased a 3 month old bearded dragon (not my first) from a trusted reptile shop; keep in mind this was 3 days ago. He is presumably male (visible hemipenes, femoral pores and such), sitting at 27 grams and 8 inches when I had originally purchased him. One think I overlooked at the retile shop was the substrate they were using for their bearded dragons: it was a loose substrate, Zilla desert sand blend to be exact. At first I was skeptical, asking about possible impaction as one should when this is a thing to consider. They shrugged it off, saying they'd housed their bearded dragons (along with many other species of lizards and snakes) with that substrate for years with no health concerns at all; they were a well educated shop and could answer any of my questions correctly. I figured it was fine, considering there were poos littering the cage here and there (they were housed together, another thing I am not a fan of but they all looked healthy otherwise.) As the title suggests, he hasn't pooped for the entirety of the time I have had him and am growing steadily more nervous. I've started to get worried about impaction all over again. He's been on paper towel substrate and on a diet of brown crickets and collard greens, the crickets are quite large (around the size of small marbles) though I have never had a problem when feeding a dragon of that size those particular crickets. I've read somewhere that too large of food can also cause impaction, is this true? I'm downsizing on crickets regardless of whether this is true or not. A few more honorable mentions health wise: when I first got him he was full of energy, running everywhere and climbing up my arms. Now, he's grown sort of... Lazy? Not lethargic, no, he's still alert and moves around except less- could this still be relocation stress? He used to happily chase down his crickets but now he prefers to be hand fed (not something I do regularly or the sake of enrichment). He is also kind of twitchy, sometimes when I am no where near him he randomly twitches his head up or to the side (not head bobbing though). Over the timeframe of 2 days he's also gained 7 grams (standing at 34 grams as of now), I get that he's in his growing stage but... I mean, so much growth over two days? It doesn't even look normal, he looks slightly obese despite my limited feedings and balanced diet. I am NOT overfeeding him, could it be the cause of him not going poo or is it natural growth? I've never had this issue before. Please help!