100w heater for 25 litres

  1. kazc31

    100W Heater Suitable For 25 Litres?

    So Basically I'm taking setting up my aquarium slow! Waiting for it to cycle properly and still have yet to buy a heater however, luck would have it and I found my old heater whilst sorting the loft! The instructions say 100w suitable for 40-120 litres but wondered if suitable for my 25 litres...