New here to Frog Forums but not to the ACF and ADF world. There could be a variety of reasons for the ADF frogs to die. Local retailers here have had many issues over the years with how well the frogs do. Often I have found it to be good ol' Chytrid Fungus. I would suggest reading up on it and how you can prevent it spreading through your tanks. Many times the frog can seem totally fine and then *poof* you have sick frogs. I have found in our arrivals that we may have a live rate fo 50% of the frogs that we bring into the store. Once we began treating them upon arrival that success rate has gone up to nearly 90%. I don't know of another retailer where we are that actually treats and quarantines these frogs upon delivery to the store. Before I was there that never happened either. I do it as a volunteer to the shop. At first they were in disbelief. Now they find it is worth the 10 day treatment time I take with the arrivals.