external inline heater recommendations

[luv4salt]

I have a FOWLR 120 g tank Im setting up and trying to limit what's in my tank.  Any recommendations for heaters? Preferably external in line.  Can you put 2 in line? I have a fluvial g6.Thanks

 

[Steve175]

If you are actively setting it up, consider converting to a sump. Then nothing will be in the tank. The advantage of several small heaters vs. 1-2 large heaters is that if one gets stuck on, the former will not nuke the tank.