how do i have 2 tanks with no a heater for molly

[guppies.mollies.platies]

how do i have a tank set up with a heater and one without one can i have some sort of plumbing that will not suck up any fish and some heat going into the other tank without buying a heater

 

[willywonka099]

If I am understanging your question right ........the set-up you are looking for will set you back 5 times atleast more than another heater .....sometimes there aren't shortcuts to fish keeping ....if you need a heater and can't supply one you don't need a second tank (think about the fish)