I found these little things on the internet, designed for tanks less than 20 litres. Anyone heard of them? Are they any good?
And is the cheaper model not dangerous by being 'continuously on'? Wouldn't that just keep heating the water to dangerous levels?
Or are there any other tiny heaters out there?
And is the cheaper model not dangerous by being 'continuously on'? Wouldn't that just keep heating the water to dangerous levels?
Or are there any other tiny heaters out there?
