Bear5800
Aquarium Advice Apprentice
I am 11 and my dad has a heater in his 90g tank.I wont to know do I need a heater.
bruinsbro1997 said:+1. No goldfish belongs in a ten gallon. If you were looking at coldwater fish that will not outgrow ten gallons its fine, but IMO for most common tropicals you will need a heater, unless you live somewhere where it is hot and humid year-round (and even then, it's always good to have a back-up heater).
Scouser said:Nobody said they do.
He gave an example of a cold water fish, then explained most fish would like heaters and gave a rough price.