memedumpster For filming. Nature can be cruel on command with the right ingredients. Drama on call!
Dr Dim They let all kinds of fish in with each other, ideally if they all get fed regularly it's more or less OK. I'm guessing the caecilians are not incredibly rare or endangered.
spikestoyiu They're not "major predators," they're just bored jerks.
oogaBooga Those nice frogs were just tying a fancy bow in his neck ribbons.