Is there a difference between using a submersible heater and one of those heaters that hangs from the side of your aquarium?
If there is, then which heater would be better to use.
I'm just guessing right not but I think the majority of you may say submersible heaters...
![dunno :dunno: :dunno:](/images/smilies/ipb/Dunno.gif)
I'm just guessing right not but I think the majority of you may say submersible heaters...