Thanks Eric, I will get more canisters. They are at ground level and I hope the vanzos will still use them. Nepenthes ampularia is a safe nep from what I have read because of the short and squat pitchers that are very open. I just read that Mycrohyla nepenthicola is a frog fom Borneo that lives and breeds in ampullarias pitchers! There is only one larger pitcher and I will keep a close eye on it. And I thought three little ones is a lot to look after!