I have a female veiled Cham who’s around 6 months old and I’m wanting to get a lay bin started. I have a plant pot that is 11 long by 11 wide. Is this the appropriate size ? Also I’m trying to order some play sand and can’t seem to find the right kind. Can some one send a link to what you use ? Would be very helpful. Alsoo I’ve noticed my baby starting to look a little weak and I think she’s starting to develop eggs, and sadly I wasn’t told the right supplements so I’ve been using the wrong stuff. I’ve ordered some repshay calcium plus loD powder (idk if that’s how you spell it) so hopefully that comes soon so I can start supplementing her correctly. In the meantime I wanted to get some calcium drops. Would that be safe ? And what brand should I get ?