fresh fish water

Question
Hi, i just cleaned my fish tank and i was wondering if i should fill it back up with warm tap water or cold tap water?

Answer
depends what type of fish your keeping, the best way to put water back into the tank is if it's the exact water temperature as the water your taking out.

Do you have a tropical tank that you need a heater for... then add slightly warm lukewarm water

if you have goldfish they usually just need room temperature water.

Use a water dechlorination to get rid of any chlorine in the water