Many submersible aquarium heaters are encased in glass and there is a risk of breakage especially if in a tank of large boisterous fish.
The other problem with having a heater physically in the aquarium is that fish may get burnt by the heating element if they lie on it.
What are some alternatives? At the local fish shops, I’ve come across several alternatives.
• The first is to house the heater separately from the main tank – i.e. either in the filter compartment or sump.
• The second is to put a protective sleeve over the heater.
• A third way is to have a heater that’s fixed into the water line.
• You can also purchase a tough plastic encased heater that’s designed to take the rough and tumble of large fishes.
If you have any more great solutions to fish issues, please do share.
