Any problem with this heater placement?

[>>klong<<]

The Reefer sump is tight any problem putting my Jager heaters vertically in the return chamber? I believe the element is the silvery part and that is well below the overflow to the socks

 

[eggplantparrot]

note the "minimum water depth" squiggly lines on the head of the heaters

 

[>>klong<<]

Yikes. Not even close. Thanks.

 

[eggplantparrot]

maybe try positioning them diagonally on the glass nearest to the filter cup? one stacked over the other.