75 watt vs 100 watt eheim Jager

[Nano man]

Hey guys,
DT is 10 gallon and sump is 5.5 gallon, current 50 watt eheim jager is not doing it no more plus its super old.
So should I get the 75 watt or 100 watt? The heat is off at night at my business so it gets cold since the temp is dropping now.
Thanks Reefers.

 

[Coastie Reefer]

I have a 100 or 125 on my 20 and it keeps a constant 78. I have a 75 on my 10 with same results. Hope that helps.

 

[Ebone]

You might be hard pressed to fit length on 100 in a ten gallon

 

[Nano man]

I have an eshopps sump nano so it's tall enough. Just don't want overkill but want it to be able to handle it so temp stays constant.......might just go with the 100 watt.
Thanks