Welcome to R2R! How old are your girls? (I mean, you don't have to be specific or answer obviously!) I started "training" my youngling when he was about 7-8ish, and now that he's a teen some days he's "too cool" (my words not his) to help with the tanks, others he's in there doing a deeper inventory and investigation than I am. It's so fun to share with the kiddos!