Killifish Tanks

[rocknurworld2006]

Hi whats the smallest tank to use for killifish pairs for breeding?

and how do you filter them -sponge filters?

main question is how do u heat them??

thanks everyone

 

[BigC]

12x8x8
Small sponge filter
Years ago you used to be able to buy small heaters with external stats you could couple lots of heaters to the one stat nowdays a simple 50w heater/stat is the norm.