Alright to sum this up fast I cought 6 bullfrogs and put them in a 10 gallon with drift wood fake plants to hide in the water, and some that hanged over the drift wood for a dry place to hide too. A week later I bought a baby Yellow ear turtle a light and a filter a "Reptile fliter'' and under gravel. about 6 days after this the started looking pale and sickly. one day later one had died. the next day 4 died. after that the other 2 died with in 24 hours.Shocked I Cleaned the whole cage witth hot water and a garden hose to spiher the water out. Replaced the water with water I had prepared for cleaning time. I didn’t just want a turtle so I set off to find more frogs. Ended up with 2 bullfrogs one with out arms and tail stub and other was fully formed, also I cought 30 minnows and 3 tadpoles. Then I got a firebelly toad from the pet store and a green tree frog. It has been a week since then, I walk in today and the older bull frog is dead. I don’t get it Every other thing is ok eating and healthly. Why in the world do all my bull frogs die and yet the tadpoles toad tree frog half a frog turtle and minnows are just fine? I have had bull frogs before never had a critter die that wasn’t eaten by another please help.