[windiewasher]

I have been told to put fish in your tank overnight!
great idea,im going to get a couple and try it!

[Pope vader]

if this was true, pond wouldnt freeze over

[stuart mc]

would the trout in my freezer do

[andyatkinson]

i tried this, just ended up wasting loads of money on tins of tuna, and all the flakes blocked my pump

[Andy Prittchard]

Put a few tennis balls in there - that'll stop it freezing.

[windiewasher]

i was told you still need to insulate tank but the movement in the tank will stop it freezing!
Plus obviously tank is warmer and not open to the elements like a pond in your garden!

if this was true, pond wouldnt freeze over

[H S and Son]

Don't put water in it. That'll stop it.

[Dave Willis]

Chuck a bag of salt in it.

[G Griffin]

Don't put water in it. That'll stop it.

It won't do the fish any good, though.

[Dave Willis]

sea salt

[G Griffin]

sea salt

and vinegar?.....maybe, a bit of tartare sauce?......

[Frankybadboy]

would the trout in my freezer do

i have one of them it called the ex wife

[windiewasher]

Goldfish will do the job
Just hope I remember to take them out before cleaning the windows

[andyM]

I would be very surprised if it works.
Fish respond to cold water by slowing down their body's metabolism and becoming sluggish to conserve energy. It's a natural instinct for them to be fairly dormant in winter until the beginning of spring when the water temperature increases.
On the other hand if you put half a dozen goldfish in there and one hungry piranha you are pretty much guaranteed the goldfish will swim like f*ck. 

[niceandclean]

The advice on this forum gets better and better!   

[LWC]

Goldfish will do the job
Just hope I remember to take them out before cleaning the windows

Try catch them lol