Choosing the right heater for my tank

[Dafish]

Merry Christmas everyone hope all is well.  
 
So I plan on buying and 68 gallon tank at some point. the dimensions are 48in long 24in wide and 14 in tall. I was wondering what heater I should get. and if one would be fine or two on each side?? Thanks 

[mcarroll]

One is fine....two would be slightly better in some ways...but maybe not worth taking up the extra space unless the lower-wattage heater was significantly smaller in size.

 

Marineland or Eheim.  Just select the one rated as close to your tank size as possible.  Oversizing is somewhat dangerous.

 

Will there be a sump tank?  Or just a display by itself?

[Dafish]

1 hour ago, mcarroll said:

One is fine....two would be slightly better in some ways...but maybe not worth taking up the extra space unless the lower-wattage heater was significantly smaller in size.

 

Marineland or Eheim.  Just select the one rated as close to your tank size as possible.  Oversizing is somewhat dangerous.

 

Will there be a sump tank?  Or just a display by itself?

Thanks .  just a display tank