I have plans to take Rubiix to get fed by a pinky pump today and when I went to retrieve him, I opened his tub to find him not only using his hide (which he normally never does) but also there were 3 objects in his tub. The first I quickly identified as a urate! Yay for hydration! The other two are a little wierder. The first looks like a urate but is a darker coloration and the other doesn't look like anything and it has a gritty texture. Almost like course sand. The gritty pieces feel too hard to be vermiculite but it could be. Any ideas? I'm uploading the pictures now. My camera doesn't like to take up close pics of things I need it to.