Stay away from inline heaters b/c of failure rates?
I'm setting up a 125 using 2 eheim canisters and just now as I was researching inline heaters I came across advice to avoid them b/c their failure rates are higher than other types. Is this true? And is it enough of a bother that I should look into hang ons or submersibles? I'd really like to keep the heater out of the tank if at all possible.