i was not trying to make you look ignorant at all.
both of those, the fire bellies and the newts, secrete a toxin that is harmfull to each other. In time that toxin will start killing off the tank inhabs.
Just offering advice that is all. I dont want to see either of them start dying and in time it will happen. I understand it take money just please seperate them as soon as you can before it becomes to late.
I have been raising and breeding frogs for years just passing on what I have learned.