Originally Posted by LugiaChan
LOVE IT! What kind of lighting is that?? :D
Edit: You can *fully SUBMERGE a heater? mine's HUGE for the tank but if I can submerge it against the longest side horizontally instead of vertically, it'll work fine!!! I really need to know, thanks! ^___^
It's just standard fluorescent lighting.
As stated, it depends on the heater. After the Marineland Stealth recall alot of people I know went to the Fluval M series(what i have) and there was some initial hesitation because they labeled the packaging oddly for Canada. It appears as though you can't fully submerse them but many people wrote in to Hagen asking if they could indeed and everyone I've talked to, including myself got the same response that it was just labeled that way due to Canadian regulation.
TLDR; If you aren't sure if it's submersible contact the manufacturer.